dataset_version
unknown
queId
stringlengths
32
32
difficulty
stringclasses
5 values
qtype
stringclasses
1 value
problem
stringlengths
6
2.89k
knowledge_point_routes
sequence
"2023-07-07T00:00:00"
caaa1eddd8e44bef93f25acbc57b8371
1
short_answer
$12321\div37$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division out of the Multiplication Table" ]
"2023-07-07T00:00:00"
28774179acd44fbdaf5d40e780523af5
0
short_answer
A bookcase with seven shelves contains $280$ books, each shelf contains $3$ fewer books than the shelf below it. How many books are on the top shelf?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences" ]
"2023-07-07T00:00:00"
38bf844b32b44c12972bb035ec388106
1
short_answer
There are $3$ blue, $3$ green and $3$ white pencils in a box. At least how many pencils must Darrell draw from the box to get $$1$$ green pencil for sure?
[ "Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Worst Case in Pigeonhole Principle Problems", "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations" ]
"2023-07-07T00:00:00"
bb1f1a78e8b14c55b2e4ca48c347db8c
1
short_answer
In a class of $32$, $\dfrac{3}{4}$~are boys, how many are girls?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Knowing the Base" ]
"2023-07-07T00:00:00"
6650434a14d84648b471103d681433eb
1
short_answer
Linda was then asked to determine the value of $n$, given that $\frac{2240}{n}$ is also a square number. Determine the value of $n$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations through Formulas->Perfect Square Factorization" ]
"2023-07-07T00:00:00"
02bc5b84f38e437d928aa61c776bd24c
1
short_answer
Aaron likes to help his mother with chores around the house. He sweeps the floor every $3$ days, mopes the floor every $5$ days, cooks dinner every $9$ days and cleans the windows every $3$ weeks. He does all $4$ chores on the same day today. How many days later will he do all $4$ chores together again?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Extracting Common Factors from Whole Numbers" ]
"2023-07-07T00:00:00"
8b07fa55294340ce938279e09cfc9c8c
1
short_answer
A class has 44 students participating in competitions, 30 of whom participate in math competition and 26 in art competition. How many students participate in both math and art competitions?
[ "Overseas Competition->Knowledge Point->Counting Modules->Inclusion-Exclusion Principle->Inclusion-Exclusion Principle for Two Sets" ]
"2023-07-07T00:00:00"
3610afbddbce47998aebfb515c853f57
2
short_answer
A group of kids share a pack of candies. If every kid eats $$18$$ candies, then $$12$$ more candies are needed. If every kid eats $$15$$ candies, the candies are just enough to be distributed to $$2$$ more kids. How many candies are there?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Distribution Problems" ]
"2023-07-07T00:00:00"
0e28012c7afd408599dee757d5a607e6
2
short_answer
A textbook has $$310$$ pages, numbering from $1$ to $310$. What is the sum of all the digits numbering this book?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Page Number Problem" ]
"2023-07-07T00:00:00"
a3f51789234d477fb06391f3a221a5f8
2
short_answer
Calculate: $$22\times125\times8$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Fast Multiplication and Division of Whole Numbers" ]
"2023-07-07T00:00:00"
e351511a62494ba0991dc2cdd9255710
1
short_answer
Avril is $8$ years old this year, and her dad is $5$ times as old as Avril. Find the age difference between Avril and her dad $2$ years ago.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Age Problems->Basic Relationships in Age Problems" ]
"2023-07-07T00:00:00"
2a7407914fcd4db5b094cbb7fb4b2b91
1
short_answer
If $9$ items cost £$6.30$, what will be the cost of $11$?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Money Calculation" ]
"2023-07-07T00:00:00"
12630e7ba91647e9a662b2150bd08918
1
short_answer
Using a calculator, evaluate the following expression and round off to the nearest $3$ decimal places: $16.7-\sqrt[3]{\frac{(-4.56)^{2}-(8.1)^{3}}{7.2^{3}}\div\left[-\sqrt{6\frac{3}{4}}-(-30.15)\right]}$
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
dea0d88a56c14c18bf792f9e1d676070
1
short_answer
Oliver is $$20$$ this year, and Lin is $$26$$ this year, so how many years later will the sum of their ages be $$48$$?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Age Problems" ]
"2023-07-07T00:00:00"
e61ecccd8d4e46a5bae3436df379fd8e
1
short_answer
Jayden starts from place A, and Carter starts from place B. They walk towards each other at the same time. The speeds ratio of Jayden to Carter is $7:4$. After Jayden arrives to place A, he turns around immediately and keep walking until he meet Carter. If the distance between place A and place B is $440\rm m$, how far is their meeting place from place A?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions" ]
"2023-07-07T00:00:00"
f3a192a1a028460aa34b249e7e3af6b6
1
short_answer
$$7$$ years ago, the ratio of Mr. Lim\textquotesingle s age to Mrs. Lim\textquotesingle s age was $$6:5$$. The sum of their current ages is $$69$$ years old. Find Mr. Lim\textquotesingle s current age.~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Proportions->Ratio Word Problems with Invariant Differences" ]
"2023-07-07T00:00:00"
7f06cc0235094faaa81a0a2fb9cab606
3
short_answer
Sam Sam and Peter had some stickers in the ratio 7 : 5. Sam and Peter each gave 20\% of their stivkers to John. As a result, John's stickers increased by 80\%. If Sam had 20 stickers more than John in the end, how many stickers did Peter have at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Percentages Word Problems" ]
"2023-07-07T00:00:00"
2ef9562fe8a044c3af3451bfe10a4c3b
1
short_answer
$$6$$ students participated a math competition, the score mean of $$5$$ of them is $$87$$. If add Jim\textquotesingle s score, the score mean of all of them will be $$88$$. What is Jim\textquotesingle s score?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->The Meaning of Fractions" ]
"2023-07-07T00:00:00"
914f071ea10440cebf9dbe8becbdbc9d
1
short_answer
Calculate: $$58+63+59+62+63+56+61=$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers" ]
"2023-07-07T00:00:00"
4a241f99a7b844b08c465d23e0993893
2
short_answer
One-fifth of the length of a piece of wood measures 6cm. What is one-third of this wood?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions" ]
"2023-07-07T00:00:00"
b4b4e5c5437f4235a2a175fc8db815dd
1
short_answer
A TV costs $4200$ dollars. The store lowers its price by $$10 \%$$ at first, then lowers the price by $$20 \%$$ later. What is the price of the TV now?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages" ]
"2023-07-07T00:00:00"
f42746b63c97449b9bd8019271c9ec21
2
short_answer
A shop purchased some baseball bats at $$ $135$$ each. It then sold them at $$ $185$$ each. When the shop was left with $$3$$ bats, the proceeds had covered the initial total cost price plus a profit of $$ $2945$$. How many baseball bats did the shop purchase at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts" ]
"2023-07-07T00:00:00"
457a726196e141089b3e12d90241956e
1
short_answer
Raja and Kumar had the same amount of money at first. After Raja spent $ $$$$286$$ and Kumar spent $ $$$$109$$, Kumar had $$4$$ times as much money as Raja. How much money did each of them have at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Difference and Multiple" ]
"2023-07-07T00:00:00"
34ba1fe6c4914c9988860c36d1caf4a3
2
short_answer
47 boys are going on a trip to the zoo by minibus. If each minibus can carry 6 children, how many minibusses will be needed?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Division without Remainders" ]
"2023-07-07T00:00:00"
5b0b415f20824bf48a8768e9f5d5ec26
1
short_answer
Given that $▲ + ▲ = ■$ and $■ + ▲ = ●$ and $♦ = ● + ■ + ▲$ how many $▲$s are equal to $♦$ ?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Equivalent Substitution in Equation Word Problems->Replacement of Equivalent Substitution" ]
"2023-07-07T00:00:00"
3518cc99e1f044c886a532f40ac85ca4
1
short_answer
A table cost $$$160$$ more than a chair. Mrs Lim bought a table and $$5$$ chairs for $$$328$$. Find the cost of $$1$$ chair.
[ "Overseas In-curriculum->Knowledge Point->Operations of Numbers -> Money Word Problems ", "Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Money" ]
"2023-07-07T00:00:00"
9da061efc392431dbe6794c1c302e8e3
1
short_answer
$$879 + 268 =$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition of Whole Numbers->Addition in Horizontal Form" ]
"2023-07-07T00:00:00"
bc4b9a02e5f940dead7da75f6c772177
1
short_answer
It takes $10$ minutes to fill a bath when using both the hot and cold tap at the same time. Water flows from the cold tap at twice the rate of the hot tap. How long would it take to fill the bath when using just the cold tap?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Work Word Problems->Simple Work Word Problems->Work Word Problems with Specific Quantities" ]
"2023-07-07T00:00:00"
b36b7952db0b4b93a6507a61d91c0d4d
2
short_answer
There are $$10$$ numbers and their mean is $$1111$$, the mean of the first $$4$$ numbers is $$240$$ less than the mean of the last $$6$$ numbers. What is the mean of the last $$6$$ numbers?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems " ]
"2023-07-07T00:00:00"
0851ade8e456416a88c4d9132c4034de
1
short_answer
Pip has $$60$$p. Bud has £$$1.10$$. How much money do they have altogether?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Simple Addition and Subtraction" ]
"2023-07-07T00:00:00"
6cd294ca2ca74856bd3764d49417e29b
1
short_answer
Rachel and Alice have some candy. If Rachel gives Alice $10$ pieces of candy, then they would have the same number of candy. However, if Alice gives Rachel $10$ pieces of candy, Rachel will have $4$ more than $3$ times that of candy Alice has. How many pieces of candy did they have in total originally?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Difference and Multiple" ]
"2023-07-07T00:00:00"
779ed1e319ae4389b632ed4de525a437
2
short_answer
In the following, all the different letters stand for different digits. What is the value of $PI$? $IS + IS + IS + IS = PI$
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
1f8c8ba64a594dd29927d99fdf51836d
1
short_answer
At Think Olympics, Jack completes an $$800-$$meter race. He runs the first $$280$$ meters at a speed of $$7$$ meters per second, the middle $$400$$ meters at a speed of $$5$$ meters per second, and in the sprint stage, Jack runs at a speed of $$8$$ meters per second. Find the time Jack spends on the entire race (in seconds).
[ "Overseas Competition->Knowledge Point->Word Problem Modules", "Overseas Competition->Knowledge Point->Distance Word Problems->Distance Word Problems on Straight Road" ]
"2023-07-07T00:00:00"
de8e499d6ea74617b2a986394b5a5443
1
short_answer
The ratio of Jocye\textquotesingle s speed to Lori\textquotesingle s speed is $3:2$. If Lori can run $2$ meters per second, how far can Jocye run in $10$ seconds?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions" ]
"2023-07-07T00:00:00"
0f0e737c506a401d8cff81ef9c2365a6
1
short_answer
You bought a bike for $1,000$ dollars. The bike depreciates at the rate of $12 \%$ per year. Find the value of your bike after $8$ years. ($1.12^{8} \approx 2.47596$ and $0.88^{8} \approx 0.35963$; round the result to the nearest tenth)
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
e7ebfcda9f0740958ddcaf89fb51bd23
0
short_answer
Work out $$727+482$$. ~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition of Whole Numbers->Addition in Horizontal Form" ]
"2023-07-07T00:00:00"
399c54f13ae4483e856b4165e9f0062f
1
short_answer
The probability of an animal A living over $$20$$ years old is $$0.6$$, and the probability of living over $$25$$ years old is $$0.3$$. If there is a $$20$$-year-old animal A, what is the probability of it living over $$25$$ years old?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions" ]
"2023-07-07T00:00:00"
270f382989f44eca81a1f3f8761a46cb
2
short_answer
Don walks towards the library at a speed of $$60$$ metres per minute. His brother, Danny, returns from the library at the same time. They meet $$360$$ metres from their house. How fast can Danny walk if the library is $$780$$ metres away from home?
[ "Overseas Competition->Knowledge Point->Distance Word Problems->Distance Word Problems on Straight Road", "Overseas Competition->Knowledge Point->Word Problem Modules" ]
"2023-07-07T00:00:00"
c2a559c3b6124e8a9ad447bce30b9d43
1
short_answer
A football competition was held between five Year $$6$$ teams. Each team played every other team once. How many games did the teams play in total?
[ "Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning->Sports Competition->Single Cycle Race" ]
"2023-07-07T00:00:00"
1302114e84374d8f8d8fde77c6f270af
1
short_answer
A book uses $$792$$ digits for printing its page numbers. How many pages does the book have?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Page Number Problem->Correspondence of Specified Numbers and Page Numbers" ]
"2023-07-07T00:00:00"
2266bba4c5654df6ac5b7df6d9d4e424
1
short_answer
The spring sports meeting is coming soon, and every student in Class 1 of Grade 6 has signed up for at least one event. If 40 students are participating in rope skipping and 31 students participating in the long jump, and 21 students participating in both events, how many students are participating in only one event?
[ "Overseas Competition->Knowledge Point->Counting Modules->Inclusion-Exclusion Principle->Inclusion-Exclusion Principle for Two Sets" ]
"2023-07-07T00:00:00"
1ea732c5a49c4c82bed4097a4a8a3cc3
1
short_answer
Anne mixed $1$ kg $500$ g of flour, $1$ kg $200$ g of brown sugar and $900$g of butter in a bowl. She then divided the mixture equally into $8$ cake tins. How much mixture was there in each cake tin?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Weight" ]
"2023-07-07T00:00:00"
9af3526725c54d168b001b25839f37fd
1
short_answer
$\left( \frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\cdots+\frac{1}{10}\right)+\left( \frac{2}{2}+\frac{2}{3}+\cdots\cdots+\frac{2}{10}\right)+\left( \frac{3}{3}+\cdots+\frac{3}{10}\right)+\cdots\cdots+\left( \frac{9}{9}+\frac{9}{10}\right)+\frac{10}{10}$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Fast Calculation in Fractions" ]
"2023-07-07T00:00:00"
42bf42bdc05245e899b8ef7be48f6759
2
short_answer
$$A$$, $$B$$, $$C$$, and $$D$$ are lining up to take a picture. $$A$$ and $$B$$ can only stand on the far right or far left. How many different ways can they line up?
[ "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations", "Overseas Competition->Knowledge Point->Counting Modules->Questions Involving Enumeration->Enumeration" ]
"2023-07-07T00:00:00"
bed68fc453f94368b47e0f9de6b2c0bd
1
short_answer
Find $x$. $$51-(15-2x)=11x$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation" ]
"2023-07-07T00:00:00"
e7c5db2d941e4d1f9962ca19c545eb0e
0
short_answer
Find the value of □: $\frac{{20}}{{30}} = \frac{□}{27} $,□=~\uline{~~~~~~~~~~}~.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Properties of Fractions" ]
"2023-07-07T00:00:00"
cb99f14cb28547ce8a12013d9b435b2b
2
short_answer
There are $$10$$ red marbles, $$5$$ blue marbles and $$8$$ green marbles in a bag. If Janice has only one chance to take marbles out from the bag without looking into the bag, what is the minimum number of marbles she must take out from the bag to ensure she gets at least $$4$$ marbles of the same colour?
[ "Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Worst Case in Pigeonhole Principle Problems", "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations" ]
"2023-07-07T00:00:00"
57bb5b4044d043d7ab2ed365ec7917fa
1
short_answer
How many different two-digit numbers can be formed using the numbers $$1$$, $$2$$, $$3$$?
[ "Overseas Competition->Knowledge Point->Counting Modules->Questions Involving Enumeration->Dictionary Ordering" ]
"2023-07-07T00:00:00"
c781c988a20442c8b61fad38f74231ea
0
short_answer
Form the smallest $$4$$-digit even number with the digits given below. Each digit can be used at most once. $$4$$、$$5$$、$$7$$、$$9$$
[ "Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning" ]
"2023-07-07T00:00:00"
1a41fe933c714f5dbf0d2b6b1a44c69f
1
short_answer
A two-digit integer has remainder $5$ when it is divided by $7$ and remainder $11$ when divided by $13$. What is the largest possible value of the number?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems" ]
"2023-07-07T00:00:00"
514cdf8bac23435c8c06bbdf81e64567
2
short_answer
If $$3$$ workers take $$3$$ days to build a wall, how many days will $$1$$ worker take to build the same wall?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction" ]
"2023-07-07T00:00:00"
307ab345fabd4b8aaff4b7d5917794fd
1
short_answer
If $$a=1$$, $$b=2$$, and $$c=3$$, then $$\overline{abc}=123$$. Given that $$A=\overline{xy}$$ and $$B=\overline{2xy}$$, if $$B$$ is $$25$$ more than six times of $$A$$, what is the value of $$A$$? John attempted to answer the question in this way: Since we have that $6\times \overline{xy}+25 = \overline{2xy}$, then $60x+6y+25=200+10x+y$ which implies that $10x+y =45$ and so $\overline{xy} = 45$. Is he right or wrong? If not, solve for the correct answer.
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Place Value and Number Bases->Applying the Principle of Place Value" ]
"2023-07-07T00:00:00"
c98d52b67705466d8ba4e69027df1a56
0
short_answer
Insert one or two pairs of brankets in the equations below. How many different results can you work out? $$285+15\div5-2$$. $$285+15\div5-2$$. $$285+15\div5-2$$. $$285+15\div5-2$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
bc2eaa05c2644d01acc25bd3b154dd7d
1
short_answer
$39$ pupils lined up in $3$ equal rows. How many pupils were there in each row?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying of Multiplication and Division" ]
"2023-07-07T00:00:00"
f3cda231135d443db7dbdf86f98d01dd
1
short_answer
Look at the following two equations $a + 12 = 16$ $2a + b = 18$ Use both these equations to work out the value of $b$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with Multiple Variables->System of Equations with Whole-number Coefficients" ]
"2023-07-07T00:00:00"
41c7afc767ed40daaa39d2def9f0bda4
1
short_answer
$$100$$ boys are standing in front of their lockers, numbered from $$1$$ to $$100$$. ~At the beginning, ~all lockers are unlocked. ~$$A$$ teacher calls out \textquotesingle$$3$$\textquotesingle, only those boys whose locker numbers are divisible by $$3$$ will lock their lockers. ~The teacher then calls out \textquotesingle$$5$$\textquotesingle, only those boys whose locker numbers are divisible by $$5$$ will unlock their lockers if they are locked, ~or lock their lockers if they are unlocked. ~How many lockers will be unlocked at the end?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Perfect Square Numbers->Questions involving Square Numbers" ]
"2023-07-07T00:00:00"
c27708a444de416daece772484d27182
1
short_answer
There are seven students A, B, C, D, E, F and G line up. If A wants to stand in the middle of B and C (not necessarily next to each other), D and E refuse to be next to each other and F and G want to be next to each other, how many ways are there to arrange them?
[ "Overseas Competition->Knowledge Point->Counting Modules" ]
"2023-07-07T00:00:00"
b6d01c501c18487f9e4f3f79d7526cce
1
short_answer
Nicolas and Yiding are climbing the stairs with different speed. They both start from level $$1$$. When Nicolas reached level $$4$$, Yiding reached level $$3$$. Continue with this speed, when Nicolas reach level $$16$$, Yiding will be at which level?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Interval Problems" ]
"2023-07-07T00:00:00"
4a96b08695f1451ab05c1c722f12a959
1
short_answer
Lucy wants to buy some cakes. If she buys $$10$$ cakes, she need to borrow 11 dollars. If she buys $$13$$ cakes, she needs to borrow $$26$$ dollars. How much does one cake cost ?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Distribution Problems->Basic Distribution Problems" ]
"2023-07-07T00:00:00"
c9848b7f2bdb4b02b6a8315b987132c2
1
short_answer
Four boys have an average mass of $$50\text{kg}$$ and six girls have an average mass of $$40\text{kg}$$. What is the average mass of the ten children?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems ->Using Formulas->Finding the Average Directly" ]
"2023-07-07T00:00:00"
cc9a4ae09bbb496aaa4271ae07c4779f
1
short_answer
A number when divided by $$12$$ gives $$11$$ remainder $$5$$. What is the number?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division with Remainders" ]
"2023-07-07T00:00:00"
418d9f95c94b4bab93c8e3700c845d5e
2
short_answer
What is the value of~$\dfrac{1}{2-3}-\dfrac{4}{5-6}-\dfrac{7}{8-9}$~?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Negative Numbers->Operations on Negative numbers" ]
"2023-07-07T00:00:00"
abaab11ba949453489f49e64542f6792
1
short_answer
Which number is halfway tetween $$4.6$$ and $$13.8$$? ~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Four Operations of Decimals" ]
"2023-07-07T00:00:00"
f1c6632cac7d493a881d8e10eab95ae1
1
short_answer
A cricketer plays in $5$ matches. He scores $37,53,x,29$ and $41$. His mean score is $40$. What is $x$?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems ->Questions Involving Average->Questions Involving Average (ordinary type)" ]
"2023-07-07T00:00:00"
52dedf9ce05e4ea3a7d65ae01e1338d3
0
short_answer
How many palindromic numbers are there between $$1000$$ and $$9999$$ inclusive? Answer :~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Counting Modules->Questions Involving Enumeration->Enumeration" ]
"2023-07-07T00:00:00"
938ae204da174d739962f4162d4b20e8
1
short_answer
Work out $$4336 \div 8$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division out of the Multiplication Table" ]
"2023-07-07T00:00:00"
e00d2baa889045a6810756a5f6ded27b
1
short_answer
In how many ways can the letters in the word \textquotesingle CHEESE\textquotesingle{} be arranged?
[ "Overseas Competition->Knowledge Point->Counting Modules" ]
"2023-07-07T00:00:00"
06ccb550f9c94b6e88edf78ee248277b
1
short_answer
How many three digit numbers contain at least two sevens?
[ "Overseas Competition->Knowledge Point->Counting Modules->Law of Addition and Multiplication->Complex Forming Numbers->Complex Forming Numbers (with special requirements)" ]
"2023-07-07T00:00:00"
707f06cacc044e1d85aef697dea2c32f
3
short_answer
\textbf{Percentage Single Base} 65\% of the animals in a farm were cows and the rest were goats. When 240 more cows and goats were added to the farm, the percentage of cows increased by 20\% and the number of goats doubled. How many goats were there in the farm at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Percentages Word Problems" ]
"2023-07-07T00:00:00"
7c5a2dda1a89437a812dee6e6d3c8006
2
short_answer
My special six-digit number has a $9$ in the units column. If I remove the $9$ from the units column and place it at the left hand end of the number, but leave all the other digits unchanged. I get a new six-digit number. This new number is four times my special number. What is my special six-digit number?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Place Value and Number Bases->Numbers->Understanding Numbers and Digits" ]
"2023-07-07T00:00:00"
8f0a469087a3468e9dd6d097faa4382a
1
short_answer
A division gives a quotient of $$12$$ and a remainder of $$3$$. What is the minimum value of the dividend? Pip\textquotesingle s Answer: The smallest possible divisor is $$1$$, so the minimum value of the dividend is $$1\times12+3=15$$
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems->Questions involving Divisions with Remainders" ]
"2023-07-07T00:00:00"
9e16012db73740a0b2623e56b90ddb02
1
short_answer
Abigail is $6$ years older than Jonathan. Six years ago she was twice as old as he. How old is Jonathan?
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
85287eb8abe94dc69ff3f32348aa3828
1
short_answer
Alice can do a job in $$40$$ days and Bob can do it in $$60$$ days. They decide to work on the project together, but Alice takes some days off in the middle of the job. If they finish the job by the end of the $$27^{}\rm {th}$$ day, how many days does Alice take off?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Work Word Problems->Collaborative Work Word Problems" ]
"2023-07-07T00:00:00"
1079de7a7656466a8e5c71823b1f57b3
1
short_answer
It is given that $$a \otimes b = a\times b+a-b$$. For example, $$2\otimes 3 = 2 \times 3 + 2 - 3 = 5$$. Find the value of $$4\otimes3 - 3\otimes4$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition" ]
"2023-07-07T00:00:00"
f67eff9f23014ecb8eded92248463a7b
2
short_answer
In the following, all the different letters stand for different digits. What is the sum of $A + B + C + D$? $ABA + CDC = 726$
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
"2023-07-07T00:00:00"
219697dc832b445ca3d9d8288e536ba3
1
short_answer
Pip and Bud have $$10$$ candies in total, Pip has $$2$$ more than Bud. How many candies does Pip have?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems Involving Sum and Difference" ]
"2023-07-07T00:00:00"
11e8ba58465f4c138c8725a020c95ec7
2
short_answer
$3$ apples and $2$ bananas cost~£$1.25$. $1$ apple and $1$ banana cost~£$0.48$. Work out how much it would cost to buy $5$ bananas.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Equivalent Substitution in Equation Word Problems->Replacement of Equivalent Substitution", "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Equivalent Substitution that cannot be Directly Calculated" ]
"2023-07-07T00:00:00"
66dcd5cada06407ba1e9153afc26043f
1
short_answer
Makayla had $ $200$ in her piggy bank at first. Her mum then rewarded her for doing well in school, by increasing the amount of money in her piggy bank to $ $250$. What is the percentage increase in the amount of money in her piggy bank?~\uline{~~~~~~~~~~}~$ \%$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions" ]
"2023-07-07T00:00:00"
b9373bcf833d4821b3f8fcb64de110d4
1
short_answer
What number between $$30$$ and $$40$$ is divisible by both $$3$$ and $$4$$?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Factors and Multiples->Common Factors and Common Multiples->Word Problems Involving Factors and Multiples->Multiples Word Problems" ]
"2023-07-07T00:00:00"
1848190c71c645c0997874fe8ca76815
2
short_answer
A teacher asks the class to finish reading a storybook within a number of days. If Vanessa reads $$30$$ pages a day, she will finish reading $$2$$ days later than the given deadline. If she reads $$39$$ pages a day, she will finish reading $$4$$ days ahead of the deadline. In how many days are the students supposed to finish reading the storybook? How many pages has the storybook?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Distribution Problems->Distribution Conversion Problems" ]
"2023-07-07T00:00:00"
5262af77457a47089064b6dc77839b82
1
short_answer
Henry wrote some digits in the following sequence: $$2$$,$$0$$,$$2$$,$$0$$,$$0$$,$$2$$,$$0$$,$$2$$,$$2$$,$$0$$,$$2$$,$$0$$,$$0$$,$$2$$,$$0$$,$$2$$,$$\cdots $$ If he wrote a total of $$535$$ digits, how many of digit $$2$$ did he write?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems" ]
"2023-07-07T00:00:00"
a4663920546242aeb50c5eaeaf379262
1
short_answer
Find the remainder when $$36\times 37\times 38\times 39\times 40\times 41$$ is divided by $$7$$.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying of Multiplication and Division" ]
"2023-07-07T00:00:00"
caad5339582b4857888fcff1cca8c78e
1
short_answer
$126$~ $\div$~ $2$=
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations through Formulas" ]
"2023-07-07T00:00:00"
ccbbcf445df24e4ba0699d6f1e37b90a
1
short_answer
Find the value of the following expression. $$1000\div 17+2000\div 17+2100\div 17$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Distributive Law of Whole Numbers" ]
"2023-07-07T00:00:00"
070c04e9775b4292869eedb678f57b8f
1
short_answer
There are 5 apples in one box. How many apples would there be in 6 boxes?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying of Multiplication and Division" ]
"2023-07-07T00:00:00"
b152c6eb52ea4a47bee276fd7fdc5526
1
short_answer
Given that $$4 \Delta 1=17$$, $$5 \Delta 4=29$$, $$8 \Delta 16=80$$ , then $$10 \Delta 9=$$~\uline{~~~~~~~~~~}~.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition->Finding Patterns" ]
"2023-07-07T00:00:00"
ff8eaf85f9494a4bb58b4c2de7f7a467
1
short_answer
Pamela baked $$85$$ cookies in the morning and $$135$$ cookies in the afternoon. She gave $$55$$ cookies to her friends in the evening. How many cookies does she have left in the end?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Simple Addition and Subtraction" ]
"2023-07-07T00:00:00"
bf206205208a4e6aaa3f21b6175f11a0
1
short_answer
Work out $3102 \div6$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division out of the Multiplication Table" ]
"2023-07-07T00:00:00"
539ace63a9a84f38adf540a759c0f768
1
short_answer
Owen had some fifty-cent and one-dollar coins. $\frac{2}{7}$ of his coins were fifty-cent coins. His mother gave him $10$ one-dollar coins and five-dollars\textquotesingle~worth of fifty-cent coins. In the end, he had twice as many one-dollar coins as fifty cent coins. How many coins did Owen have at first?
[ "Overseas Competition->Knowledge Point->Counting Modules->Inclusion-Exclusion Principle" ]
"2023-07-07T00:00:00"
11fb94abf2634f198729473920061c7d
1
short_answer
($$2016$$ Henry Park Primary School, Quiz $$1$$, Primary Two, Question \#$$16$$) There are $$863$$ passengers on a plane. $$354$$ are men, $$165$$ are children and the rest are women. How many women are there on the plane? There are~\uline{~~~~~~~~~~}~women on the plane.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Simple Addition and Subtraction" ]
"2023-07-07T00:00:00"
c3879ebf82934b73a62fb270f35eee17
1
short_answer
The tickets for a charity show were $$$5$$ for each adult and $$$3$$ for each child. $$19$$ tickets were sold. The total amount for the sale of tickets was$$$75$$. How many adult tickets were sold?~\uline{~~~~~~~~~~}~.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems Involving Sum and Difference" ]
"2023-07-07T00:00:00"
277ff5ac1d264964a4d29eb33ba74058
0
short_answer
A dress costs thrice as much as a belt. The shirt costs twice as much as a dress. The difference between the cost of the shirt and the cost of the belt is $$$155$$. How much more does the dress cost than the shirt?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Difference and Multiple" ]
"2023-07-07T00:00:00"
d9a025512c6941b6b97c54521e40115c
2
short_answer
Anna, Betsy and Charlene had a total of $$168$$ marbles. Charlene gave $$15$$ marbles to Betsy. Then, Betsy gave $$8$$ marbles to Anna. In the end, the ratio of the number of marbles that Anna had to the number of marbles that Betsy had to the number of marbles that Charlene had is $$2:5:7$$. How many marbles did Betsy have at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Proportions->Dividing Quantities Based on Ratio" ]
"2023-07-07T00:00:00"
56a6e5f6729f412081b2719e7253346e
0
short_answer
Brenda saved $$$6$$ each day while Andy saved $$$7$$ each day. How much money would Brenda have saved when Andy saved $$$378$$?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Money Calculation" ]
"2023-07-07T00:00:00"
d4ec077973ca41e3a9584a6faecfcac3
1
short_answer
There are $10$ questions in a science competition. A person gets six points for a correct answer and loses two points otherwise (getting a wrong answer or skipping a question). Eddie answered all questions and got $44$ points. How many questions did Eddie answer correctly?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Chicken-Rabbit Problems->Solving Chicken-Rabbit Problems by Using Hypothesis" ]
"2023-07-07T00:00:00"
9060af40a1724e5887ca3ecd529e790f
2
short_answer
A cuboid was made using clay. Candy made some changes to the size of the cuboid. She increased the length by $$10 \%$$ and reduced the breadth to $$\frac{4}{5}$$ of the original breadth. The ratio of the new height to the original height is $$11:10$$. Express the new volume of the cuboid as a percentage of its original volume.
[ "Overseas Competition->Knowledge Point->Geometry Modules->3-D Shapes->Cuboids and Cubes", "Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions->Proportions" ]
"2023-07-07T00:00:00"
4bdb0a33fd034a4a9f038d5763df3bfc
1
short_answer
Calculate:~$52\div\dfrac{2}{3}$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions->Division of Fractions" ]
"2023-07-07T00:00:00"
db664e372bde470cad3851d48f1d711a
1
short_answer
Work out $52836\div7$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division out of the Multiplication Table" ]
"2023-07-07T00:00:00"
218af0df4ee747b79d4247767d1fee5a
0
short_answer
How many ways can we award a gold, silver and bronze prize among eight contestants?
[ "Overseas Competition->Knowledge Point->Counting Modules" ]
"2023-07-07T00:00:00"
0fc0dda3957d4f01b0dccedf0adc5e89
2
short_answer
There are ten points on the circumference of a circle. How many triangles can be formed by using any three points as their vertices?
[ "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations->Basic Operations of Combinations" ]