RikoteMaster/aqua-rat-mcqa huggingface dataset:
Question: A jeep takes 3 hours to cover a distance of 440 Km. how much should the speed in Kmph be maintained to cover the same direction in 1/2th of the previous time?
A.48 Kmph
B.252 Kmph
C.293 Kmph
D.263 Kmph
Answer: C.293 Kmph
Explanation: Time = 3
Distance = 340
1/2 of 3 hours = 6 * 1/2 = 1.5 Hours
Required speed = 440/1.5 = 293 Kmph
C)
Question: There are 3 people A,B & C. Rs.700 is divided among A,B & C so that A receives 1/2 as much as B and B 1/2 as much as C. What is the C's share is?
A.Rs.100
B.Rs.200
C.Rs.400
D.Rs.500
Answer: C.Rs.400
Explanation: Let C's share = Rs.x. Then
B's share = Rs.x2
And, A's share = Rs.x4
A:B:C = x4:x2:x=1:2:4
Hence, C's share = Rs.(700×47) = Rs.400
C
Question: Foodmart customers regularly buy at least one of the following products: milk, chicken, or apples. 60% of shoppers buy milk, 50% buy chicken, and 35% buy apples. If 17% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2 of the products listed above?
A.5%
B.13%
C.21%
D.11%
Answer: D.11%
Explanation: 60-(x+17+z) + 50-(x+17+y) + 35-(z+17+y) + x + y + z +17 = 100
where x = people who bought MilkChicken
y = people who bought chickenApples
z= people who bought Milk and Apples
x+y+z= the number of people who bought just exactly two products.
Hence solving the above equation we get,
111 -(x+y+z) = 100
Thus, x+y+z= 11
Answer: D
Question: A cricket bat is sold for $900, making a profit of $225. The profit percentage would be
A.24%
B.25.5%
C.33.33%
D.36.3%
Answer: C.33.33%
Explanation: 225/(900 - 225) = 33.33%.
Answer: C
Question: The angle of elevation of the sun, when the length of the shadow of a tree is √3 times the height of the tree is
A.30°
B.45°
C.60°
D.90°
Answer: A.30°
Explanation: Solution
Let AB be the tree and AC be its shadow.
Then, < ABC	= θ.
Then, AC/AB	= √3
cotθ= √3
θ=30°
Answer A
Question: If the two-digit integers K and N are positive and have the same digits, but in reverse order, which of the following CANNOT be the sum of K and N?
A.181
B.165
C.121
D.99
Answer: A.181
Explanation: Since the question asks for the answer that CANNOT be the sum of K and N, and the answers are numbers, we can use a combination of TESTing VALUES and TESTing THE ANSWERS to eliminate the possible values and find the answer to the question.
We're told that K and N are two-digit positive integers and have the SAME DIGITS but in REVERSE ORDER. We're asked which of the 5 answers CANNOT be the SUM of K and N.
Let's start with the 'easiest' answer first:
44. Can we get to 44 in the manner described?
Yes, if the numbers are 13 and 31.....13+31 = 44. Eliminate Answer E
Now let's work through the rest of the list....
Can we get to 99 in the manner described?
Yes, there are several ways to do it. For example, if the numbers are 18 and 81.....18+81 = 99. Eliminate Answer D
Can we get to 121 in the manner described?
Yes, there are several ways to do it. For example, if the numbers are 38 and 83.....38+83 = 121. Eliminate Answer C
Can we get to 165 in the manner described?
Yes, there are a couple of ways to do it. For example, if the numbers are 78 and 87.....78+87 = 165. Eliminate Answer B
There's only one answer left....
A
Question: For any real number x, the operatoris defined as:
(x) = x(3 − x)
If p + 1 =(p + 1), then p =
A.−3
B.0
C.1
D.2
Answer: D.2
Explanation: (x) = x(1 − x)
(p + 1) = (p + 1)(3 - p - 1) =(2 -p)(p+1)
We are given that p + 1 =(p + 1)
Therefore (2-p)(p+1) = (p + 1)
Or (p + 1) + (p-2)(p+1) = 0
(p + 1)(p-2) = 0
p = -1,p=2
Option D
Question: In how many different number of ways 5 boys and 2 girls can sit on a shopa which can accommodate persons?
A.180
B.190
C.200
D.210
Answer: D.210
Explanation: Option 'D'
7p3 = 7 × 6 × 5 = 210
Question: Of the 8 members of teacher in school, 5 can teach Physics, 7 can teach Math, and 4 can teach both subject. If one member is chosen at random, what is the probability that the member chosen will be someone who can not teach either subject?
A.a) 5/18
B.b) 7/18
C.c) 1/2
D.d) 0
Answer: D.d) 0
Explanation: You know how to solve for Total number of people who can teach at least one subject:
Total = n(A) + n(B) - n(A and B)
Total people who can teach at least one subject = 5 + 7- 4 = 8
So 8 people know how to teach at least one subject. Hence, if you pick anyone, the probability is 0 that he/she wouldn't know how to teach any subject.
Answer (D)
Question: In a certain Parallelogram the degree measure of one angle exceeds that of the other by 70 what is the degree measure of the smaller angle?
A.55
B.80
C.85
D.90
Answer: A.55
Explanation: In a parallelogram opposite angles are equal and the angles at each side are supplementary to each other (supplementary angles are two angles that add up to 180°).
Given: x+(x+70)=180 --> x=55.
Answer: A.
Question: A man sells 45 lemons for Rs 40 and loses 20%. At how much price should he sell 24 lemons to the next customer to make a 20% profit?
A.37
B.299
C.72
D.Rs 32
Answer: D.Rs 32
Explanation: Explanation:
Let cost price of lemons be x.
Selling price of lemons becomes CP - loss.
=>SP= x-(20/100)x
=>40=x(80/100)
=>50
So 45 lemons cost Rs 50
Cost of 1 lemon = 50/45 Rs
Cost of 24 lemons = (50/45)*24 =80/3 Rs
Selling Price of 24 lemons =(80/3)+(20/100)(80/3)=Rs 32
ANSWER:D
Question: If M = 775 × 778 × 781, what is the remainder when M is divided by 14?
A.6
B.7
C.8
D.9
Answer: A.6
Explanation: M 775/14 leaves a remainder 5
778/14 leaves a remainder 8
781/14 leaves a remainder 11
5*8*11 =440
So the remainder will be the remainder of 440/14 which is 6
Ans A
Question: A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
A.15 hrs
B.20 hrs
C.25 hrs
D.30 hrs
Answer: A.15 hrs
Explanation: first pipe = x
ssecond and third (x-5)and (x-9)
1/x+1/(x-5)=1/(x-9)=>X=15
ANSWER A
Question: 6 women can do 75 units of work in 8 days by working 5hrs/day. In how many days can 4 women do 30 units of work by working 8hrs/day ?
A.3days
B.4days
C.5days
D.6days
Answer: A.3days
Explanation: 6x8x5/75=4x8xA/30
solve this for A then we get A=3days
ANSWER:A
Question: If a - b = 3 and a^2 + b^2 = 29, find the value of ab.
A.12
B.15
C.10
D.18
Answer: C.10
Explanation: 2ab = (a^2 + b^2) - (a - b)^2
= 29 - 9 = 20
ab = 10.
Answer is C.
Question: In an exam, C scored 35 percent, D scored 65 percent and E 50 percent. The maximum score awarded in the exam is 2000. Find the average mark scored by all the three candidates?
A.100
B.500
C.1000
D.1500
Answer: C.1000
Explanation: Average mark scored by all the three boys
= [35/100 (2000) + 65/100 (2000) + 50/100 (2000)] / 3
= 1000
Answer: C
Question: On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:
A.47619
B.49619
C.47719
D.57619
Answer: A.47619
Explanation: Last digit should be 9.
when multiplying 7 with 9 , we get 63.
place 3 at unit place , we get 6 as carry.
Next digit of number should be such that we get product with 7 as a number whose last digit is 13-6=7.
such number is 1.
when 7 is multiplied with 1 , we get 7.
add carry 6 to it and we get 13.
so 3 will get at tens place and 1 carry for next place.
so next digit should give last digit as 2 (3-1=2).
such digit is 6.
...
..
so continuing like this , we get desired number as 47619
ANSWER:A
Question: What is the sum of the odd integers from 55 to 65, inclusive?
A.495
B.360
C.555
D.600
Answer: B.360
Explanation: The mean is 60.
Sum=Mean(# of elements)
There are 6 odd numbers between 55-65 inclusive. 6*60=360
B
Question: A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 11 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled?
A.6.24
B.7.4
C.7.92
D.6.28
Answer: D.6.28
Explanation: Net part filled in 1 hour = (1/4 - 1/11) = 7/44
The cistern will be filled in 44/7 hrs i.e., 6.28 hrs.Answer: D
Question: If Mason is now twice as old as Gunther was 10 years ago, and G is Gunther's current age in years, which of the following represents the sum of Mason and Gunther's ages 10 years from now?
A.4G-8
B.3G
C.2G-8
D.AG-8
Answer: B.3G
Explanation: G is Gunther's current age.
Let Mason's current age be M.
given M = 2(G-10).
four years from now Mason's age will be = 2(G-10) + 10 = 2G-10
four years from now Gunther's age will be = G+10
Sum of ages of Mason and Gunther's after 4 years = 2G-10+G+10 = 3G
Ans : B
Question: A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the room?
A.110
B.124
C.96
D.117
Answer: D.117
Explanation: Length = 6 m 24 cm = 624 cm
Width = 4 m 32 cm = 432 cm
HCF of 624 and 432 = 48
Number of square tiles required = (624 * 432)/(48 * 48) = 13 * 9 = 117
ANSWER:D
Question: If the cp of 12 rubbers is equal to the sp of 8 rubbers, the gain %is ?
A.25%
B.30%
C.50%
D.70%
Answer: C.50%
Explanation: (Explanation:Friends, we know we will need gain amount to get gain percent, right.
So lets get gain first.
Let the cost price of 1 pen is Re 1 Cost of 8 pens = Rs 8 Selling price of 8 pens = 12
Gain = 12 - 8 = 4 Gain%=(GainCost*100)%=(48*100)%=50%
C
Question: If a: b :: 3 : 7, then what is (5a+6b): (a-3b)?
A.-57:2
B.-57:11
C.11 : 10
D.-11 : 10
Answer: A.-57:2
Explanation: a/b= 3/7
Dividing numerator & denominator of ' (5a+6b)/(a-2b) 'by b,
[5(a/b)+6]/[(a/b)-3]= [5*(3/7)+6]/[(3/7)-3]= -57/2
ANSWER:A
Question: The speed of a train is 90 kmph. What is the distance covered by it in 10 minutes?
A.15 kmph
B.8 kmph
C.9 kmph
D.1 kmph
Answer: A.15 kmph
Explanation: Explanation:
Distance=Speed*Time
90 * 10/60 = 15 kmph
ANSWER:A
Question: There are 690 male and female participants in a meeting. Half the female participants and one-quarter of the male participants are Democrats. One-third of all the participants are Democrats. How many of the Democrats are female?
A.75
B.100
C.115
D.175
Answer: C.115
Explanation: female = x
Male = 690-x
x/2 + 690-x/4 = 1/3* (690)= 230
x= 230
x/2 = 115 is supposed to be the answer
M is missing something
Correct Option C
Question: If the price of a computer were reduced by 11 percent, which of the following could not be the final price of the computer? (Assume initial price to be integer in cents)
A.$844.10
B.$895.20
C.$1,055.20
D.$1,135.20
Answer: A.$844.10
Explanation: Let X be the initial price of computer without discount
then price (final) after discount should be=X(1-11/100)------->X(8/9)=A(say)
means X=A*(9/8).....
so initial price to be integer(As per stem) final price must be multiple of 8
if we check options all were divisible by 8 except option (A)..which is Ans.
Ans A
Question: The ratio of the present ages of P and Q is 3:4. 5 years ago, the ratio of their ages was 5:7. Find the their present ages?
A.30, 40
B.30, 46
C.30, 49
D.30, 43
Answer: A.30, 40
Explanation: Their present ages be 3X and 4X.
5 years age, the ratio of their ages was 5:7, then (3X - 5):(4X - 5) = 5:7
X = 35 - 25 => X = 10.
Their present ages are: 30, 40..Answer:A
Question: Two cars cover the same distance at the speed of 62 and 64 kmps respectively. Find the distance traveled by them if the slower car takes 1 hour more than the faster car.
A.1873
B.1848
C.1984
D.1838
Answer: C.1984
Explanation: Explanation:
62(x + 1) = 64x
X = 31
62 * 32 = 1984 km
Answer: Option C
Question: In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:
A.21
B.22
C.28
D.25
Answer: C.28
Explanation: A:B = 100:75
B:C=100:96
A:C = 100/72 = 100:72
A beats(100-72) = 28 m
ANSWER C
Question: One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number?
A.9
B.3
C.2
D.4
Answer: A.9
Explanation: x/2 â€“ x/3 = 6 => x =6
3 + 6 = 9
Answer A
Question: In what ratio must rice at $9.30/kg be mixed with rice at $10.80/kg so that the mixture is worth $10/kg?
A.1:3
B.9:4
C.8:7
D.11:9
Answer: C.8:7
Explanation: 9.30x + 10.80y= 10(x+y)
.80y= .70x
x/y= 8/7
C is the answer
Question: What is the difference between local value & face value of 9 in the numeral 65693?
A.84
B.89
C.81
D.90
Answer: C.81
Explanation: (Local value of 9) - (Face value of 9)
= (90 - 9) =81
C
Question: Anand finishes a work in 7 days, Bittu finishes the same job in 8 days and Chandu in 6 days. They take turns to finish the work. Anand on the first day, Bittu on the second and Chandu on the third day and then Anand again and so on. On which day will the work get over?
A.3rd
B.6th
C.9th
D.7th
Answer: D.7th
Explanation: They completed 146/168 work in 6 days working one by one on eacg day.
On 7 th day , 22/168 work is left which will be completed by Anand on 7th day.
ANSWER:D
Question: What is the sum of all the multiples of 12 between 30 and 200?
A.1648
B.1632
C.1626
D.1612
Answer: B.1632
Explanation: You first have to know all the multiples of 12 between 30 and 200. They are 12,24,36,48,60,72,84,96,108,120,132,144,156,168,180192. If you add all these numbers together, you get 1632.
Final Answer:
B
Question: How many paying stones, each measuring 2 1/2 m * 2 m are required to pave a rectangular court yard 50 m long and 16 1/2 m board?
A.99
B.18
C.165
D.10
Answer: C.165
Explanation: 50 * 33/2 = 5/2 * 2 * x => x
= 165
Answer:C
Question: 4 buses runs between Chennai and Mysore. If a man goes from Chennai to Mysore by a bus and comes back to Mysore by another bus, then the total possible ways are
A.4
B.8
C.12
D.16
Answer: C.12
Explanation: Since the man can go in 4 ways and can back in 3 ways. Therefore total number of ways are 4 x3 = 12ways.
Answer C
Question: If 3x - y = 6 and x+2y = 8, then what is the value of 4x + y?
A.1/7
B.14
C.15
D.52/7
Answer: B.14
Explanation: 3x-y=6 ...equation 1
x+2y=8 ...equation 2
adding both the equations
4x+y=14
correct answer option B
Question: A group of 55 adults and 70 children go for trekking. If there is meal for either 70 adults or 90 children and if 21 adults have their meal, find the total number of children that can be catered with the remaining food.
A.33
B.54
C.63
D.17
Answer: C.63
Explanation: Explanation:
As there is meal for 70 adults and 21 have their meal, the meal left can be catered to 49 adults.
Now, 70 adults = 90 children
7 adults = 9 children
Therefore, 49 adults = 63 children
Hence, the meal can be catered to 63 children.
ANSWER: C
Question: If the number of 37,29n, where n represents the ones digit, is a multiple of 3, then the value of n could be which of the following?
A.1
B.2
C.3
D.4
Answer: C.3
Explanation: Then for any number to be a multiple of 3,The sum of its digits should be the multiple of 3.
i.e 3+7+2+9+n = multiple of three
or, 21 + n = multiple of 3.
If n=3, 21 + n =24,which is a multiple of 3.
Hence answer is C.
Question: What will the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years.
A.1:2
B.2:1
C.2:2
D.2:3
Answer: D.2:3
Explanation: Explanation:
Let the principal be P and rate be R
then
ratio = [(P∗R∗6/100) /(P∗R∗9/100)]
=6PR /9PR=2:3
Option D
Question: Each book on a certain shelf is labeled by a single category. For every 2 history books, there are 7 fantasy books and for every 3 fantasy books, there are 8 reference books. If the proportion of history to reference books is doubled, while the proportion of fantasy to reference books is maintained, which of the following could be the number of history books if there are fewer than 60 fantasy books on the shelf after the changes?
A.12
B.21
C.27
D.35
Answer: A.12
Explanation: For every 2 history books, there are 7 fantasy books:
Originally H:F = 2:7 = 6:21.
For every 3 fantasy books, there are 8 reference books:
F:R = 3:8 = 21:56
H:F:R = 6:21:56
After the changes, H:F:R = 12:21:56
There are fewer than 60 fantasy books, so there are 21 or 42 fantasy books.
The number of history books could be 12 or 24.
The answer is A.
Question: I bought two books; for Rs.480. I sold one at a loss of 15% and other at a gain of 19% and then I found each book was sold at the same price. Find the cost of the book sold at a loss?
A.267
B.280
C.279
D.177
Answer: B.280
Explanation: x*(85/100) = (480 - x)119/100
x = 280
Answer:B
Question: A wheel has a diameter of x inches and a second wheel has a diameter of y inches. The first wheel covers a distance of d feet in 300 revolutions. How many revolutions does the second wheel make in covering d feet?
A.300xy
B.300x/y
C.300x - y
D.200y/x
Answer: B.300x/y
Explanation: First Wheel with diameter x inches ----> So the circumference = x*pi --------- (1)
Second Wheel with diameter y inches ----> So the circumference = y*pi --------- (2)
Revolutions = distance/circumference
So, from equation (1)
300 = d/(x*pi)
d = 300 * x * pi ---------- (3)
From equation (2)
Revolutions = d/(y*pi) = (300 * x * pi) / (y*pi) = 300x/y
Answer (B)
Question: Find the average of all prime numbers between 10 and 40
A.15.6
B.22.5
C.18.6
D.32.2
Answer: B.22.5
Explanation: Prime numbers between 10 and 40 are 11, 13, 17, 19, 23, 29, 31, 37
Required average = (11+ 13+ 17+ 19+ 23+ 29+ 31+ 37)/8 = 180/8 = 22.5
Answer is B
Question: If Log2 x - 5 Log x + 6 = 0, then what would the value / values of x be?
A.5.3296
B.6.3296
C.7.3296
D.8.3296
Answer: A.5.3296
Explanation: log(2x)-5log(x)+6=0 (given)
log(2x)-log(x^5)=-6
log(2x/x^5)=-6 [since log(a)-log(b)=log(a/b)]
apply anti log
2/(x^4)=e^-6
2/(x^4)=2.4788*10^-3
x^4=806.85
x=5.3296
ANSWER:A
Question: Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?
A.226
B.992 rs
C.665
D.771
Answer: B.992 rs
Explanation: (800*3*3)/100 = 72
920 + 72 = 992
Answer: B
Question: A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 50 minutes. The total distance is?
A.1 km
B.2 km
C.3.19 km
D.4 km
Answer: C.3.19 km
Explanation: C
3 km
Let the total distance be 3x km.
Then, x/3 + x/4 + x/5 = 50/60
47x/60 = 50/60 => x = 1.06.
Total distance = 3 * 1.06 = 3.19 km.
Question: Working alone at its constant rate, machine A produces x boxes in 10 minutes and working alone at its constant rate, machine B produces 2x boxes in 5 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce 7x boxes?
A.3 minutes
B.4 minutes
C.5 minutes
D.14 minutes
Answer: D.14 minutes
Explanation: Rate = Work / Time
Given Rate of Machine A = X / 10 min
Machine B Produces 2x boxes in 5 min hence , Machine B produces 4x boxes in 10 min .
Rate of Machine B = 4x / 10
we need tofind the combined time that machines A and B, working simultaneouslytakeat their respective constant rates
let's first find the combined Rate of Machine A and B
Rate of Machine A = X / 10 min + Rate of Machine B = 4x / 10 = 5X/10
Now combine Time = combine work needs to be done / Combine Rate = 7x/5x * 10 = 14 Min
Ans: D
Question: If you write down all the numbers from 1 to 100, then how many times do you write 3 ?
A.33
B.38
C.20
D.88
Answer: C.20
Explanation: Explanation:
Clearly, From 1 to 100, there are ten numbers with 3 as the unit's digit - 3, 13, 23, 33, 43, 53, 63, 73, 83, 93 and ten numbers with 3 as the ten's digit - 30, 31, 32, 33, 34, 35, 36, 37, 38, 39.
So, required number = 10 + 10 = 20.
Answer: C) 20
Question: R is a set containing 8 different numbers. S is a set containing 7 different numbers, all of which are members of R. Which of the following statements CANNOT be true?
A. The range of R is less than the range of S.
B. The mean of R is greater than the mean of S.
C. The range of R is equal to the range of S.
D. The mean of R is less than the mean of S.
Answer: A. The range of R is less than the range of S.
Explanation: The range of a set is the difference between the largest and smallest elements of a set.
So, the answer is straight A: the range of a subset cannot be more than the range of a whole set: how can the difference between the largest and smallest elements of a subset bemorethan the difference between the largest and smallest elements of a whole set.
As for D:
Consider set R to be {-3, -2, -1, 0, 1, 2, 3, 4} --> mean=0.5.
(D) The mean of R is less than the mean of S --> remove the smallest term -3, then the mean of S will be 1, so more than 0.5. ANSWER IS A
Question: In a jar there are 20 white balls, 25 green balls and 32 blue balls. How many balls must be taken out in order to make sure we have 22 balls of the same color?
A.a)	23
B.b)	46
C.c)	57
D.d)	63
Answer: D.d)	63
Explanation: Here, we need to find minimum number of marbles to be taken out to get 22 marbles of same color.
For a instance, if we take 20 white marbles 1st and followed by 21 Green and then 21 Blue.
Total will be 20 + 21+ 21= 62 draws.
If we choose either Green or Blue next time. This will bring the total of either of these colored marble to 22.
So Minimum we need to take 62+1 = 63 Times to get 22 marbles of same color(either Green or Blue).
Answer : D.
Question: If the sides of a square are doubled in length, the area of the original square is now how many times as large as the area of the resultant square?
A.25%
B.50%
C.100%
D.200%
Answer: A.25%
Explanation: Let the original square have sides of length L and the new square have sides of length 2L.
The resulting areas are L^2 for the original square and 4L^2 for the new square (as the length of the side is square to get the area).
The original square's area is L^2/4L^2 or 25% of the new square's area. Choice A
Question: The price of cooking oil has increased by 25% . The percentage of reduction that a family should effect in the use of cooking oil so as not to increase the expenditure on this account is :
A.15%
B.20%
C.25%
D.30%
Answer: B.20%
Explanation: Explanation:
Reduction in consumption:
=(25/125×100)%=20%
Correct Option: B
Question: A man cheats while buying as well as while selling. While buying he takes 10% more than what he pays for and while selling he gives 20% less than what he claims to. Find the profit percent, if he sells at 11% below the cost price of the claimed weight.
A.19.81%
B.22.38%
C.37.5%
D.25%
Answer: B.22.38%
Explanation: There is a one step calculation method too. It requires more thought but is faster.
The man takes 10% more than what he pays for. So if he claims to take 100 pounds, he pays $100 but he actually takes 110 pounds for which he will take from the customer $110. Hence, in effect, there is a 10% mark up.
While selling, he sells 20% less. This means, he claims to sell 100 pounds and gets $100 but actually sells only 80 pounds and should have got only $80 for it. So this is again a mark up of $20 on $80 which is 25%.
But he also sells at 11% less
(1 + m1%)(1 + m2%)(1 - d%) = (1 + p%)
11/10 * 5/4 * 89/100 = (1 + p%)
profit % = 22.38%
B
Question: The perimeter of a semi circle is 144 cm then the radius is?
A.29
B.28
C.277
D.24
Answer: B.28
Explanation: 36/7 r = 144 => r = 28
Answer:B
Question: Tough and Tricky questions: Mixture Problems.
A drink holding 6 ounces of an alcoholic drink that is 1 part rum to 2 parts coke is added to a jug holding 35 ounces of an alcoholic drink that is 1 part rum to 3 parts coke. What is the ratio of rum to coke in the resulting mixture?
A.2:5
B.5:15
C.3:5
D.4:7
Answer: B.5:15
Explanation: Answer = B) 5:15
........................ Rum ..................... Coke ................. Total
First Drink ........... 2 ............................ 4 ..................... 6 (Ratio 1:2)
Second Drink ....... 8 ............................. 24 ................... 32 (Ratio 1:3)
Total .................. 10 ............................. 28 .................... 38
Ratio = 10:30 = 5:15
B
Question: How many pages the book have, if total 306 digits are used to form the page numbers?
A.135 pages
B.136 pages
C.137 pages
D.138 pages
Answer: D.138 pages
Explanation: First 9 pages .. 9 digits
next 90 pages .. 180 digits
next 39 pages ... 117 digits
----------------------
Total ...138 pages ...300 digits
ANSWER:D