RikoteMaster/aqua-rat-mcqa huggingface dataset:
Question: The credit card and a global payment processing companies have been suffering losses for some time now. A well known company recently announced its quarterly results. According to the results, the revenue fell to $48.0 billion from $69.0 billion, a year ago. By what percent did the revenue fall?
A.20.8
B.30.4
C.31.8
D.32.5
Answer: B.30.4
Explanation: $69-$48=21$
(21/69)*100=30.434%
ANSWER:B
Question: If x+1/x=5 then find out the value of x^5+1/x^5=?
A.2515
B.2525
C.2535
D.2545
Answer: B.2525
Explanation: given,(x+ 1/x) = 5
x^2 + 1/x^2 = (x+ 1/x)^2 - 2*x*1/x = 5^2 - 2 = 23 -------(1)
x^3 + 1/x^3 = (x+ 1/x)^3 - 3*x*1/x*(x+ 1/x) = 5^3 - 3*5 = 110 -------(2)
multiplying (1)& (2), we get
=>(x^2+ 1/x^2)*(x^3+ 1/x^3) = 23*110
=> x^5 + 1/x + x + 1/x^5 = 2530
=> x^5 + 1/x^5 + (x+ 1/x)= 2530
=> x^5 + 1/x^5 + 5 = 2530
=> (x^5+ 1/x^5)= 2525
ANSWER:B
Question: A basketball team scored x points per game in its first n games of the season, and in all the following games it scored an average (arithmetic mean) of y points per game. What was the average number of points per game in its first n + 4 games?
A.x + 3y/(n + 3)
B.x + y/(n + 3)
C.(x + 3y)/(n + 3)
D.(nx + 3y)/(n + 4)
Answer: D.(nx + 3y)/(n + 4)
Explanation: Total points in first n games = nx
Total marks in next 3 games is 3y
So, Average marks in n + 4 games = (nx+3y)/(n+4)
Hence, correct answer will be (D)
Question: Carol and Jordan draw rectangles of equal area. If Carol's rectangle measures 15 inches by 24 inches and Jordan's rectangle is 8 inches long, how wide is Jordan's rectangle, in inches?
A.30
B.35
C.40
D.45
Answer: D.45
Explanation: Area of first rectangle is 15*24=360 hence area of second would be 8x=360x
x=45
answer is D
Question: Prabhu purchased 30 kg of rice at the rate of 17.50 per kg and another 30 kg rice at a certain rate. He mixed the two and sold the entire quantity at the rate of 18.60 per kg and made 20 per cent overall profit. At what price per kg did he purchase the lot of another 30 kg rice?
A.14.5
B.12.5
C.15.5
D.13.5
Answer: D.13.5
Explanation: Let he purchase of x/kg.
∴ (525 + 30x) × 120⁄100 = 60 × 18.60
⇒ x = 13.5/kg.
Answer D
Question: A and C can finish 100,000 piece of work in 15 days each. B can do 30% faster than A and B.Approximately how many days would it take to finish million piece of work with all three working simultaneously?
A.40
B.46
C.51
D.42
Answer: B.46
Explanation: since B is 30% faster , thus it will finish130,000 piece of work in 15 days
in 15 days total piece of work finish by all three will be :
100,000+100,000+130,000 = 330,000
in 30 days:
330,000+330,000 = 660,000
in 45 days:
660,000+330,000 = 990,000
now only 10,000 more piece of work are required to finish , which will take 1 day
thus in all 46 days.
Ans:B
Question: Find the missing in the series: 60, 54, 45, 41,___
A.22
B.287
C.267
D.2767
Answer: C.267
Explanation: Answer:C
Question: A bag contains 6 red, 5 blue and 2 green balls. If 2 ballsare picked at random, what is the probability that both are red?
A.1/13
B.2/23
C.5/26
D.4/27
Answer: C.5/26
Explanation: P(Both are red),
=6C213C2=6C213C2
=5/26
C
Question: What is the total number of positive integers that are less than 500 and that have no positive factor in common with 500 other than 1?
A.50
B.100
C.200
D.300
Answer: C.200
Explanation: Since 500=2^2*5^3 then a number can not have 2 and/or 5 as a factor.
The odd numbers do not have 2 as a factor and there are 250 odd numbers from 1 to 500.
We then need to eliminate the 50 numbers that end with 5, that is 5, 15, 25,...,495.
There are a total of 250 - 50 = 200 such numbers between 1 and 500.
The answer is C.
Question: Two women started running simultaneously around a circular track of length 1800 m from the same point at speeds of 10 km/hr and 20 km/hr. When will they meet for the first time any where on the track if they are moving in opposite directions?
A.72
B.74
C.76
D.78
Answer: A.72
Explanation: Time taken to meet for the first time anywhere on the track
= length of the track / relative speed
= 1800 / (30 + 60)5/18 = 1800* 18 / 90 * 5 = 72 seconds.
Answer:A
Question: Three people have $28, $72, and $98, respectively. If they pool their money then redistribute it among them, what is the maximum value for the median amount of money?
A.$72
B.$85
C.$99
D.$101
Answer: C.$99
Explanation: Solution -
Total money distributed is $198. In order to maximize median, one person has to accept $0 and remaining two people share $99 each. Hence median is $99.
ANS C
Question: Find the length of the altitude of an equilateral triangle of side 3√3 cm.
A.4.5cm
B.7.2cm
C.4.3cm
D.5.6cm
Answer: A.4.5cm
Explanation: Area of the triangle = (√3/4) x (3√3)2 = 27√3. Let the height be h.
Then, (1/2) x 3√3 x h = (27√3/4) X(2/√3) = 4.5 cm.
Ans: A
Question: A single discount equivalent to the discount series of 20%, 15% and 10% is?
A.31.8
B.31.1
C.38.8
D.31.2
Answer: C.38.8
Explanation: Explanation:
100*(80/100)*(85/100)*(90/100) = 61.2
100 - 61.2 = 38.8
Answer: C
Question: The ratio 15:25 expressed as percent equals to
A.70 %
B.60 %
C.30 %
D.75 %
Answer: B.60 %
Explanation: Explanation:
Actually it means 15 is what percent of 25, which can be calculated as,
(15/25)*100 = 15 * 4 = 60
Answer: Option B
Question: A store owner wants to mix cashews and almonds. Cashews cost 2 dollars per pound and almonds cost 5 dollars per pound. He plans to sell 150 pounds of a mixture. How many pounds of each type of nuts should be mixed if the mixture will cost 3 dollars?
A.30
B.40
C.50
D.60
Answer: C.50
Explanation: Let x be the number of pounds of cashews
So, 150 - x will represent the number of almonds
Since each pound of the mixture cost 3 dollars, 150 pounds will cost 3 × 150 = 450 dollars
Cost of cashews + cost of almonds = 450
2 × x + (150 - x) × 5 = 450
2x + 150 × 5 - x × 5 = 450
2x + 750 - 5x = 450
2x - 5x + 750 = 450
-3x + 750 = 450
-3x + 750 - 750 = 450 - 750
-3x = -300
-3x/-3 = -300/-3
x = 100
150 - x = 150 - 100 = 50.
Answer C
Question: How much is 80% of 60 is greater than 4/5 of 25?
A.15
B.28
C.16
D.12
Answer: B.28
Explanation: (80/100) * 60 â€“ (4/5) * 25
48 - 20 = 28
Answer: B
Question: If x⁄2 + 3⁄4 = 9⁄4, what is the value of x?
A.–2
B.–1
C.1
D.3
Answer: D.3
Explanation: x⁄2 + 3⁄4 = 9⁄4
Let's multiply both sides by 4.
2x + 3 = 9
2x = 6
x = 3
The answer is D.
Question: Look at this series: 36, 34, 30, 28, 24, ... What number should come next?
A.2
B.22
C.23
D.26
Answer: B.22
Explanation: This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on
2.
24-2=22
Option B
Question: Two taps can separately fill a cistern 10 minutes and 15 minutes respectively and when the waste pipe is open, they can together fill it in 42 minutes. The waste pipe can empty the full cistern in?
A.A)7
B.B)6
C.C)8
D.D)9
Answer: A.A)7
Explanation: 1/10 + 1/15 - 1/x = 1/42
x = 7
Answer:A
Question: A person saved $10 in buying an item on sale. If he spent $400 for the item, approximately how much percent he saved in the transaction?
A.8%
B.10%
C.2%
D.2.4%
Answer: D.2.4%
Explanation: Actual price = 400+10 = $410
Saving = 10/410 * 100 = 100/41 = 2.4% approximately
Answer is D
Question: A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5?
A.5litres, 7 litres
B.7litres, 4 litres
C.6litres, 6 litres
D.4litres, 8 litres
Answer: C.6litres, 6 litres
Explanation: Explanation:
Solution 1
Let x and (12âˆ’x) litres of milk be mixed from the first and second container respectively.
Amount of milk in x litres of the the first container =.75x
Amount of water in x litres of the the first container =.25x
Amount of milk in (12âˆ’xlitres of the the second container =5(12âˆ’x)
Amount of water in (12âˆ’x)litres of the the second container =.5(12âˆ’x)
Ratio of water to milk
Since x=6,12âˆ’x=12âˆ’6=6
Hence 6 and 6 litres of milk should mixed from the first and second container respectively.
Answer IS C
Question: Vijay bought 160 shirts at the rate of Rs. 220 per shirt. The transport expenditure was Rs. 1400. He paid an octroi at the rate of Rs. 1.75 per shirt and labour charges were Rs. 320. What should be the selling price of one shirt, if he wants a profit of 20%?
A.s.225
B.s.288
C.s.485
D.s.279
Answer: D.s.279
Explanation: Total CP per shirt = 220 + 1400/160 + 1.75 + 320/160 = Rs. 232.5
SP = CP[(100 + profit%)/100]
= 232.5 * [(100 + 20)/100] = Rs.279.
Answer:D
Question: A certain factory produces buttons and buckles at a uniform weight. If the total weight of 2 buttons and 2 buckles is one third of 11 buckles and 3 buttons, then the weight of 3 buttons and 5 buckles is how many times that of 5 buckles and 6 buttons?
A.1/2
B.2/3
C.3/4
D.4/5
Answer: B.2/3
Explanation: Let x be the weight of a button and let y be the weight of a buckle.
2x + 2y = (1/3)(3x+11y)
3x = 5y
x = 5y/3
3x + 5y = a(6x+5y)
10y = a(15y)
a = 10/15 =2/3
The answer is B.
Question: There are 10 pair of socks in a cupboard from which 4 individual socks are picked at random. The probability that there is at least one pair is:
A.195/323
B.99/323
C.198/323
D.185/323
Answer: B.99/323
Explanation: probability is 1-p(drawing four socks which ar different)
p(drawing four socks different) (20/20)*(18/19)*(16/18)*(14/17)=>224/323
so probability is 1-224/323=>99/323
ANSWER:B
Question: A teacher gave the same test to three history classes: W, B, and C. The average (arithmetic mean) scores for the three classes were 65, 80, and 77, respectively. The ratio of the numbers of students in each class who took the test was 4 to 6 to 5, respectively. What was the average score for the three classes combined?
A.74
B.75
C.76
D.77
Answer: B.75
Explanation: Ans : B (75)
lets say class W indeed has 4 children, B has 6 children and C has 5 children.
now, if the average of class W is 65, hence total marks awarded in the class = 65*4=260
Similarly,
class B = 80*6 = 480
class C = 77*5 = 385
total marks provided = W+B+C = 260+480+385 = 1125
avg. marks = 1125 / 15 (total no. of students) = 75=B
Question: If n=(81!  − 80!  + 79!)/(79!), which of the following could be subtracted from n so that √n is an integer?
A.1
B.2
C.3
D.4
Answer: A.1
Explanation: first lets find n.
n=(81! −80! +79!)/(79!)
n=81! /79!−80!/79! +79!/79!
n=81∗80−80+1=80(81−1)+1=80^2+1
so what should be subtracted from80^2+1, so that it becomes a perfect square ..
ans is 1, as 80^2−1+1=80^2
ANSWER:A
Question: 50 + 5 * 12 / (180/3) = ?
A.23
B.78
C.27
D.51
Answer: D.51
Explanation: Explanation:
50 + 5 * 12 / (180/3) = 50 + 5 * 12 / (60)
= 50 + (5 * 12)/60 = 50 + 1 = 51.
Answer:D
Question: The speed of light is approximately 1,76 * 10^5 miles per second. This approximate speed is how many miles per hour?
A. 1,11 * 10^7
B. 6,70 * 10^8
C. 1,11 * 10^8
D. 1,86 * 10^8
Answer: B. 6,70 * 10^8
Explanation: The easiest way to answer this question is by POE, it does not require any calculation (answered in 30seconds). In one hour there are 3600 seconds, therefore speed in miles/hour will be.
(1.76*10^5)*3600 = (1.76*10^5)*(3.6*10^3) = some number*10^8...
The key is realizing that thesome numberhas to be bigger thatn 1.76 (because 1.76*3.6), and the only answer that fits that is B
Question: In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 60 questions and secures 110 marks, the no of questions he attempts correctly is :
A.34
B.38
C.40
D.42
Answer: A.34
Explanation: Explanation:
Let the number of correct answers be X.
Number of incorrect answers = (60 – X).
4x – (60 – x) = 110
=> 5x = 170
=> x = 34
Answer: A
Question: 50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4m3 , then the rise in the water level in the tank will be:
A.20 cm
B.25 cm
C.35 cm
D.50 cm
Answer: B.25 cm
Explanation: Explanation:
Total volume of water displaced =(4 x 50) m3 = 200 m3
Rise in water level = 200/40×20= 0.25m = 25cm
Answer: B
Question: A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?
A.4:7
B.4:9
C.4:3
D.4:6
Answer: C.4:3
Explanation: 12:9
= 4:3
Answer:C
Question: Two brothers were expected to return here on the same day. Rajat returned 3 days earlier but Rohit returned 4 days later. If Rajat returned on Sunday, what was the expected day when both the brothers were to return home and when did Rohit Return?
A.Thursday, Monday
B.Sunday, Thursday
C.Wednesday, Sunday
D.Monday, Friday
Answer: C.Wednesday, Sunday
Explanation: Rajat returned on Sunday -i.e. 3 days earlier
so actual day to return home is Wednesday.
Rohit returned after days so Sunday
ANSWER:C
Question: A train crosses a platform of 120 m in 15 sec, same train crosses another platform of length 180 m in 18 sec. then find the length of the train?
A.187
B.180
C.289
D.216
Answer: B.180
Explanation: Length of the train be ‘X’
X + 120/15 = X + 180/18
6X + 720 = 5X + 900
X = 180m
Answer:B
Question: Two pipes A,B can fill a tank in 24 min. and 32 min. respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 min.?
A.8 min
B.9 min
C.7 min
D.6 min
Answer: A.8 min
Explanation: work done by A => 18/24
work done by B => x/32
18/24 + x/32 = 1
3/4 + x/32=1
24+x=32 => x=8
ANSWER:A
Question: Which of the following integers is NOT a divisor of x if x = (21)(3^7) – (7)?
A.2
B.4
C.7
D.9
Answer: D.9
Explanation: (21)(3^7) is divisible by 3 but 7 is not divisible by 3.
Therefore (21)(3^7) - 7 is not divisible by 3 and thus not divisible by 9.
The answer is D.
Question: A shipment of 1500 heads of cabbage, each of which was approximately the same size, was purchased for $600. The day the shipment arrived 2/3 of the heads were sold, each at 25% above the cost per head. The following day the rest were sold at a price equal to 40% less than the price each head sold for on the day before. What was the total gross profit on this shipment.
A.$100
B.b $115
C.c $125
D.d $50
Answer: D.d $50
Explanation: Purchase cost = 600/1500= $ 0.4
25% above the cost per head = (125/100)*0.4= $ 0.5
2/3 of the heads were sold means 2/3*1500 =1000 ,Selling amount for 1000 cabbage = 1000 * 0.5 = $ 500
Remaining were sold at a price equal to 40% less than the price each head sold for on the day before i.e , (60/100)*0.5 = $ 0.3
Hence selling cost for the remaining cabbage = 500 * 0.3 = $ 150
Total selling cost = 500 + 150 = $ 650
Gross profit = $ 650 - $ 600 = $ 50
Hence Answer is D.
Question: A machine puts c caps on bottles in m minutes. How many T hours will it take to put caps on b bottles?
A.60bm/c
B.T=bm/60c
C.bc/60m
D.60b/cm
Answer: B.T=bm/60c
Explanation: The machine puts c caps in m minutes or c caps in m/60 hours.
Rate = c/m/60 = 60c/m.
To put b caps the machine will take:-
Time = Work/Rate
T = b/60c/m = bm/60c
Answer is B.
Question: Raja was born 4 years after his father's marriage. His mother is 4 years younger than his father but 20 years older than Raja who is 20 years old. At what age did the father get married ?
A.30 years
B.25 years
C.20 years
D.22 years
Answer: C.20 years
Explanation: Explanation:
Raja's present age = 20 years.
His mother's present age = (20 + 20) years = 40 years.
His father's present age = (40 + 4) years = 44 years.
His father's age at the time of Raja's birth = (44 - 20) years = 24 years.
Therefore Raja's father's age at the time of marriage = (24 - 4) years = 20 years.
Answer: C
Question: When I was married 10 years ago, my wife was the sixth member in the family. Today, my father died,and a baby was born to me. The average age in my family today is what it was when I was married.How old was my father when he died?
A.50 years
B.60 years
C.70 years
D.80 years
Answer: B.60 years
Explanation: If x was average age 10 years ago, then total age 10 years ago = 10x.
Total age of 6 persons before death of father = 10x+60
Total age of 6 persons ( excluding father and adding son of zero age) after death of father = 60x as average of family is x again.
Hence age of father at time of death = x+60-x = 60 years
ANSWER:B
Question: A boat can travel with a speed of 25km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 120km downstream.
A.1 hr
B.2 hrs
C.3 hrs
D.4 hrs
Answer: D.4 hrs
Explanation: Speed downstream = (25 + 5) km/hr = 30 km/hr.
Time taken to travel 120 km downstream = 120/30 hrs = 4 hrs.
Answer : D
Question: The ratio of male to female in a class is 3:4. the career preference of the students in the class are to be represented in a circle graph. If the area of the graph allocated to each career preference is to be proportional to the number of students who have that career preference, how many degrees of the circle should be used to represent a career that is preferred by one third of the males and two-third of the females in the class?
A.a)160 degree
B.b) 168 degree
C.c)264 degree
D.d)192 degree
Answer: C.c)264 degree
Explanation: let the common ratio be x.. so M=3x and F=4x and Total=7x
1/3 of M= 3x/3 and 2/3 of F= 8x/3
Total preferring that carrer = x+8x/3=11x/3
Now 5x= 360, so x=360/5=72..
so x*8/3= 72*11/3=192
C
Question: A drink holding 6 ounces of an alcoholic drink that is 1 part rum to 2 parts coke is added to a jug holding 32 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.5:14
C.3:5
D.4:7
Answer: B.5:14
Explanation: The first drink has 6 oz, which are 2 oz rum and 4 oz coke. The second drink is 32 oz, which are 8 oz rum and 24 oz coke. The resulting mixture is then 38 oz (10 oz rum and 28 oz coke). Overall, this is 10 oz rum: 28 oz coke, which is a 5:14 ratio.
Answer is B
Question: If x, y, and z are positive integers and 3x = 7y = 5z, then the least possible value of x + y + z is
A.15
B.25
C.71
D.35
Answer: C.71
Explanation: given 3x=7y=5z
x+y+z in terms of x
= x+(3x/7)+(3x/5) = 71x/35
now checking with each of the answers and see which value gives a minimum integer value.
A x = 35/71*15 , not an integer
B,D,E can be ruled out similarly.
C is minimum value as x = 71*35/71 = 35
Answer is C
Question: HCF and LCM two numbers are 14 and 396 respectively. If one of the numbers is 36, then the other number is?
A.36
B.66
C.154
D.264
Answer: C.154
Explanation: 14 * 396 = 36 * x
x = 154
ANSWER:C
Question: 99,995^2 - 5^2 =
A.10^10 - 2
B.(10^5 – 2)^2
C.10^4(10^5 – 2)
D.10^5(10^5 – 10)
Answer: D.10^5(10^5 – 10)
Explanation: (99,995)^2 - (5)^2 = (100,000 -5)^2 - (5)^2 = (100,000)^2 - 2*5*100,000 + 5^2-5^2=(10^5)^2 - 10*(10^5) = 10^10 - 10*(10^5)=10^5(10^5 - 10) Answer D
Question: Of the families in City X in 1994, 40 percent owned a personal computer. The number of families in City X owning a computer in 1998 was 30 percent greater than it was in 1994, and the total number of families in City X was 4 percent greater in 1998 than it was in 1994. what percent of the families in City X owned a personal computer in 1998?
A.50%
B.52%
C.56%
D.70%
Answer: A.50%
Explanation: Say a 100 families existed in 1994 then the number of families owning a computer in 1994 - 40
Number of families owning computer in 1998 = 40 * 130/100 = 52
Number of families in 1998 = 104
The percentage = 52/104 * 100 = 50%.
ANSWER:A
Question: If 2805 / 2.55 = 1100, then 280.5 / 25.5 is equal to ?
A.1.01
B.1.1
C.0.11
D.11
Answer: D.11
Explanation: Answer
Given expression 280.5 / 25.5 = 2805 / 255
= 2805 / (2.55 x 100)
= 1100 / 100
=11
Correct Option: D
Question: In a series of consecutive odd numbers, 27 is the eighth smallest number and 25 is the ninth largest number. What is the range of the series?
A. 32
B. 30
C. 28
D. 16
Answer: C. 28
Explanation: Imp:All are consecutive odd numbers.
27 is the 8th smallest ,there are 7 numbers smaller then 27 ,smallest number :27-14=13
25 is the 10th largest ,so there are 8 numbers larger then 25, largest number:25+16=41
Range:41-13=28
Ans : C
Question: If q and t are positive integers, qt + q + t cannot be
A.5
B.6
C.7
D.8
Answer: B.6
Explanation: Let qt + t +q = x
Add 1 on both sides:
qt + t + q + 1 = x + 1
tq + 1) + q + 1 = x + 1
(q + 1)(t + 1) = x + 1
Minimum value of (q + 1) = 2
Minimum value of (t + 1) = 2
Hence x + 1 cannot be prime
Substitute x from the given options: 6 + 1 = 7 --> prime --> qt + t + s cannot be 6
Answer: B
Question: A basketball player is shooting hoops. He shoots a free throw, a high school 3-pointer, and then a professional 3-pointer. The probability that he makes the free throw is 4/5, the probability that he makes the high school 3-pointer is 1/2, and the probability that he makes the professional 3-pointer is 1/3. What is the probability that he makes at least one of the three shots?
A.14/15
B.15/16
C.17/18
D.9/10
Answer: A.14/15
Explanation: The probability that he makes at least one of the three shots = 1 - (the probability that he misses all of the shots)
The probability that he misses all shots = (prob that he misses free throw)*(prob that he misses 3-pointer)*(prob that he misses the professional 3-pointer)
Prob that he misses the free throw = 1 - 4/5 = 1/5; Prob that he misses the 3-pointer = 1 - 1/2 = 1/2; Prob that he misses the professional 3-pointer = 1 - 1/3 = 2/3
Thus the probability that he misses all shots = (1/5)*(1/2)*(2/3) = 1/15
Answer: 1 - 1/15 = 14/15
A
Question: A man is 20 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is
A.16
B.14
C.15
D.18
Answer: D.18
Explanation: Explanation:
Let the son's present age be x years. Then, man's present age = (x + 20) years
=> (x + 20) + 2 = 2(x + 2)
=> x + 22 = 2x + 4
So, x = 18. Answer: D
Question: The average age of 6 men increases by 3 years when two women are included in place of two men of ages 24 and 26 years. Find the average age of the women?
A.37
B.26
C.34
D.18
Answer: C.34
Explanation: Explanation:
24 + 26 + 6 * 3 = 68/2 = 34
Answer: C
Question: A factory produces 8000 toys per week. If the workers at this factory work 4 days a week and if these workers make the same number of toys everyday, how many toys are produced each day?
A.4436 toys
B.5487 toys
C.2000 toys
D.2354 toys
Answer: C.2000 toys
Explanation: To find the number of toys produced every day, we divide the total number of toys produced in one week (of 4 days) by 4.
8000 /4 = 2000 toys
correct answer C
Question: There are 760 students in a school. The ratio of boys and girls in this school is 3:5. Find the total of girls & boys are there in this school?
A.320
B.345
C.425
D.475
Answer: D.475
Explanation: In order to obtain a ratio of boys to girls equal to 3:5, the number of boys has to be written as 3 x and the number of girls as 5 x where x is a common factor to the number of girls and the number of boys. The total number of boys and girls is 760. Hence
3x + 5x = 760
Solve for x
8x = 760
x = 95
Number of boys
3x = 3 × 95 = 285
Number of girls
5x = 5 × 95 = 475
D
Question: a boatman selling a boat along river flow.if he sell boat in steal water at 3m/sec and flow of river is 2m/sec.how much time he will take to sell 100m.
A.30
B.10
C.15
D.20
Answer: D.20
Explanation: net speed = 3+2=5 m/sec
distance = 100m
time=100/5=20sec
answer D
Question: If a and b are multiples of 9 then which are all the multiples of 9
1) a*b
2) a/b
3) a+b
4) a-b
5) a^b
A.1,2,5
B.all of these
C.1,3,4,5
D.2,3,4,5
Answer: C.1,3,4,5
Explanation: a*b a^b a+b a-b are multiples of 6 except a/b
ANSWER:C