loafeihong/math_mmlu_format huggingface dataset:
At the start of an experiment, a certain population consisted of 3 animals. At the end of each month after the start of the experiment, the population size was double its size at the beginning of that month. Which of the following represents the population size at the end of 11 months? Answer Choice: (A)  2^3 (B)  3^2 (C)  2(3^10) (D)  3(2^11) (E)  3(10^2)
Answer: D
If n is the product of three consecutive integers, and n is divisible by 5, which of the following is not necessarily a divisor of n ? Answer Choice: (A) 210 (B) 220 (C) 230 (D) 240 (E) 250
Answer: A
If 280 people, constituting 5 percent of the population of a town, ride bicycles, and the others do not, then how many people in the town do not ride bicycles? Answer Choice: (A) 5930 (B) 5600 (C) 5320 (D) 5110 (E) 4980
Answer: C
In one hour, a boat goes 14 km/hr along the stream and 8 km/hr against the stream. The speed of the boat in still water (in km/hr) is: Answer Choice: (A) 12 km/hr (B) 11 km/hr (C) 10 km/hr (D) 8 km/hr (E) 15 km/hr
Answer: B
50 square stone slabs of equal size were needed to cover a floor area of 72 sq.m. Find the length of each stone slab? Answer Choice: (A) 120cm (B) 767cm (C) 88cm (D) 666cm (E) 776cm
Answer: A
If the average (arithmetic mean) of a and b is 45 and the average of b and c is 70, what is the value of c − a? Answer Choice: (A) 25 (B) 50 (C) 90 (D) 140 (E) It cannot be determined from the information given.
Answer: E
If one of the followings is the product of the two 3-digit integers 8K1 and 6L5 (K and L denote the tens digit of the respective integers), then that product must be Answer Choice: (A)  478,823 (B)  511,913 (C)  531,875 (D)  538,424 (E)  569,114
Answer: C
If a: b = 6:4, b: c =7: 8, find a: b: c? Answer Choice: (A) 24: 28: 32 (B) 42: 28: 36 (C) 42: 28: 38 (D) 42: 28: 32 (E) 22: 28: 32
Answer: D
An escalator is descending at constant speed. A walks down and takes 50 steps to reach the bottom. B runs down and takes 90 steps in the same time as A takes 10 steps. How many steps are visible when the escalator is not operating? Answer Choice: (A) 80 (B) 90 (C) 100 (D) 110 (E) 120
Answer: C
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is : Answer Choice: (A) Rs. 700 (B) Rs. 690 (C) Rs. 650 (D) Rs. 698 (E) Rs. 690
Answer: D
Two ants, Arthur and Amy, have discovered a picnic and are bringing crumbs back to the anthill. Amy makes twice as many trips and carries one and a half times as many crumbs per trip as Arthur. If Arthur carries a total of m crumbs to the anthill, how many crumbs will Amy bring to the anthill, in terms of m? Answer Choice: (A) x/2 (B) x (C) 3m/2 (D) mx (E) mx
Answer: E
The area of a triangle is with base 4m and height 5m? Answer Choice: (A) 20 sq m (B) 10 sq m (C) 5 sq m (D) 3 sq m (E) 12 sq m
Answer: B
A sum of money at simple interest amounts to $ 700 in 3 years and to $764 in 4 years. The sum is: Answer Choice: (A) $508 (B) $698 (C) $398 (D) $549 (E) $675
Answer: A
A train 700 m long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 min, then the length of the tunnel is? Answer Choice: (A) 298 m (B) 468 m (C) 600 m (D) 667 m (E) 781 m
Answer: C
A grocer has a sale of Rs. 4000, Rs. 6524, Rs. 5689, Rs. 7230 and Rs. 6000 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 7000? Answer Choice: (A) s. 12557 (B) s. 14993 (C) s. 15560 (D) s. 12589 (E) s. 12500
Answer: A
3 cooks have to make 80 burgers. They are known to make 20 pieces every minute working together.The 1st cook began workin alone and made 20 pieces having worked for sometime more than 3 mins.The remaining part of the work was done by second and 3rd cook working together.It took a total of 8 minutes to complete the 80 burgers.How many minutes would it take the 1st cook alone to cook 160 burgers? Answer Choice: (A) 16 minutes (B) 24 mins (C) 32 mins (D) 40 mins (E) 30 mins
Answer: C
A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 47 minutes. The total distance is? Answer Choice: (A) 1 (B) 3 (C) 4 (D) 45 (E) 4
Answer: B
X starts a business with Rs.45000. Y joins in the business after 3 months with Rs.30000. What will be the ratio in which they should share the profit at the end of the year? Answer Choice: (A) 1:2 (B) 2:1 (C) 1:3 (D) 3:1 (E) None of these
Answer: B
An engineer undertakes a project to build a road 10 km long in 300 days and employs 30 men for the purpose. After 100 days, he finds only 2 km of the road has been completed. Find the (approximate) number of extra men he must employ to finish the work in time. Answer Choice: (A) 20 (B) 25 (C) 30 (D) 35 (E) 40
Answer: C
What is the least number of square tiles required to pave the floor of a room 11 m 50cm long and 1m 50 cm broad? Answer Choice: (A) 724 (B) 804 (C) 69 (D) 844 (E) None
Answer: C
Mrs. Evans gave a test to her freshmen economics class, which has 29 students enrolled and 24 of them answered question 1 correctly. If 22 answered question 2 correctly and 5 did not take the test then how many answered both questions correctly? Answer Choice: (A) 18 (B) 19 (C) 22 (D) 20 (E) 19
Answer: C
If x is an odd negative integer and y is an even integer, which of the following statements must be true?
I. (3x + 2y) is negative integer
II. (xy)^2 is negative integer
III. (y^2 - x) is negative integer Answer Choice: (A) None of these (B) I Only (C) II only (D) IIIonly (E) I,II only
Answer: A
How many positive even integers less than 100 contain digits 3 or 7? Answer Choice: (A) 16 (B) 17 (C) 18 (D) 10 (E) 20
Answer: D
A school has only four classes that contain 10, 20, 30 and 40 students respectively. The pass percentage of these classes are 20%, 30%, 60% and 100% respectively. Find the pass % of the entire school. Answer Choice: (A) 56% (B) 76% (C) 34% (D) 66% (E) None of these
Answer: D
Today is Jack's birthday. One year, from today he will be twice as old as he was 13 years ago. How old is Jack today ? Answer Choice: (A) 23 years (B) 24 years (C) 25 years (D) 26 years (E) 27 years
Answer: E
Peter brought a scooter for a certain sum of money. He spent 10% of the cost on repairs and sold the scooter for a profit of $ 1100. How much did he spend on repairs if he made a profit of 20%? Answer Choice: (A) 100 (B) 200 (C) 300 (D) 400 (E) 500
Answer: E
Find the odd man out
4, 16, 25, 36, 42, 64 Answer Choice: (A) 36 (B) 25 (C) 42 (D) 95 (E) 4
Answer: C
The average weight of a group of boys is 30 kg. After a boy of weight 33 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ? Answer Choice: (A) 4 (B) 8 (C) 5 (D) 2 (E) 9
Answer: D
A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is? Answer Choice: (A) 1.3 (B) 1.2 (C) 1.9 (D) 1.5 (E) 1.1
Answer: D
Which of the following lines has x-intercept and y-intercept that are integers Q? Answer Choice: (A) y=3x+1 (B) y=√x+1 (C) y=-2/x (D) y=x^2-1 (E) xy=1
Answer: D
if a^2+b^2=177and ab=54 then find the value of a+b/a-b? Answer Choice: (A) 5 (B) 15 (C) 6 (D) 3 (E) 7
Answer: A
A bag contains 50 p, 25 P and 10 p coins in the ratio 5: 9: 4, amounting to
Rs. 206. Find the number of coins of each type. Answer Choice: (A) 165 (B) 174 (C) 160 (D) 163 (E) 135
Answer: C
The average of 10 numbers is 23. If each number is increased by 4, what will the new average be? Answer Choice: (A) 17 (B) 27 (C) 19 (D) 16 (E) 87
Answer: B
Each of the integers from 0 to 9, inclusive, is written on a separate slip of blank paper and the ten slips are dropped into a hat. If 5 of the slips are the drawn, without replacement, what is the probability that all 5 have a even number written on it? Answer Choice: (A) 1/252 (B) 1/10 (C) 1/8 (D) 1/2 (E) 5/9
Answer: A
The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their total surface areas? Answer Choice: (A) 81 : 121 (B) 81 : 128 (C) 81 : 120 (D) 81 : 125 (E) 81 : 122
Answer: A
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 15% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2 of the products listed above? Answer Choice: (A) 5% (B) 10% (C) 15% (D) 25% (E) 30%
Answer: C
Ayesha’s father was 38 years of age when she was born while her mother was 34 years old when her brother four years younger to her was born. What is the difference between the ages of her parents? Answer Choice: (A) 2 years (B) 4 years (C) 6 years (D) 8 years (E) None
Answer: D
The ratio of boarders to day students at a school was originally 2 to 5. However, after a number of new boarders join the initial 60 boarders, the ratio changed to 1 to 2. If no boarders became day students and vice versa, and no students left the school, how many new boarders joined the school? Answer Choice: (A) 12 (B) 15 (C) 20 (D) 24 (E) 30
Answer: B
Julie put half of her savings in a savings account that pays an annual simple interest and half in a savings account that pays an annual compound interest. After two years she earned $100 and $105 from the simple interest account and the compound interest account respectively. If the interest rates for both accounts were the same, what was the amount of Julie's initial savings? Answer Choice: (A) 600 (B) 720 (C) 1000 (D) 1200 (E) 1440
Answer: C
The cost price of a radio is Rs.1500 and it was sold for Rs.1305, find the loss %? Answer Choice: (A) 13% (B) 16% (C) 17% (D) 78% (E) 28%
Answer: A
Solve below question 2x + 1 = -19 Answer Choice: (A) -8 (B) -9 (C) 9 (D) 8 (E) -10
Answer: E
Tom invested Rs. 15000 @ 8% per annum for two years. If the interest is compounded half-yearly, then the amount received by Tom at the end of the year will be? Answer Choice: (A) 17,546.75 (B) 17,547.40 (C) 17,547.88 (D) 17,548.32 (E) 17,548.80
Answer: C
A certain scholarship committee awarded scholarships in the amounts of $1250, $2500 and $4000. The Committee awarded twice as many $2500 scholarships as $4000 and it awarded three times as many $1250 scholarships as $2500 scholarships. If the total of $45000 was awarded in $1250 scholarships, how many $4000 scholarships were awarded? Answer Choice: (A) 5 (B) 6 (C) 9 (D) 10 (E) 15
Answer: B
There are 9 points marked on the circumference of a circle. How many hexagons can be formed by connecting 6 points of the 9 points? Answer Choice: (A) 84 (B) 86 (C) 88 (D) 90 (E) 92
Answer: A
To prepare cake of type A, it requires 4 eggs. While to prepare cake of type B, it requires 6 eggs. If there are 30 eggs available, and at least one cake of each type needs to be prepared, maximum how many cakes can be prepared of type B? Answer Choice: (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
Answer: C
A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? Answer Choice: (A) 16 (B) 11 (C) 36 (D) 17 (E) 12
Answer: C
If X = 2 + 1/(1+1/(1-1/2))then the value of 4x+7/3 Answer Choice: (A) 12 2/3 (B) 15 2/3 (C) 18 2/3 (D) 11 2/3 (E) 17 2/3
Answer: D
A thief goes away with a SANTRO car at a speed of 30 kmph. The theft has been discovered after half an hour and the owner sets off in a bike at 60 kmph when will the owner over take the thief from the start? Answer Choice: (A) 1 hours (B) 2 hours (C) 2/3 hours (D) 1/3 hours (E) 2/5 hours
Answer: A
The ratio of two quantities is 10 : 7. If each of the quantities is increased by 2, their ratio changes to 15:11 then the greatest number is? Answer Choice: (A) 10 (B) 12 (C) 15 (D) 16 (E) 20
Answer: D
The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is: Answer Choice: (A) 74 (B) 94 (C) 184 (D) 364 (E) 512
Answer: D
If x^2 + 9/x^2 = 22, what is the value of x - 3/x Answer Choice: (A) 36 (B) 25 (C) 9 (D) 5 (E) 4
Answer: E
College T has 1000 students. Of the 300 students majoring in one or more of the sciences,150 are majoring in Chemistry and 180 are majoring in Biology. If at least 60 of the students are not majoring in either Chemistry or Biology, then the number of students majoring in both Chemistry and Biology could be any number from? Answer Choice: (A) 110 to 150 (B) 60 to 150 (C) 30 to 150 (D) 60 to 140 (E) 70 to 130
Answer: C
A certain class of students is being divided into teams. The class can either be divided into 18 teams with an equal number of players on each team or 24 teams with an equal number of players on each team. What is the lowest possible number of students in the class? Answer Choice: (A) 6 (B) 36 (C) 48 (D) 60 (E) 72
Answer: E
Sukhbir is taller than Randhir but not as tall as Ajit. If Manoj is taller than Nitin, who is shorter than Ajit, then who among them is the shortest? Answer Choice: (A) Nitin (B) Sukhbir (C) Manoj (D) Data inadequate (E) None of these
Answer: D
Students are in clubs as follows: Science-20, Drama-30, and Band-12. No student is in all three clubs, but 8 are in both Science and Drama, 6 are in both Science and Band, and 4 are in Drama and Band.
How many different students are in at least one of the three clubs? Answer Choice: (A) 36 (B) 38 (C) 42 (D) 44 (E) 48
Answer: D
Find the odd man out.
8, 20, 14, 21, 16, 28, 32 Answer Choice: (A) 16 (B) 21 (C) 8 (D) 28 (E) 14
Answer: B
Find the odd man out. 21, 28, 35, 42, 49, 51, 56 Answer Choice: (A) 21 (B) 28 (C) 35 (D) 42 (E) 51
Answer: E
A man invests some money partly in 9% stock at 96 and partly in 12% stock at 120. To obtain equal dividends from both, he must invest the money in the ratio: Answer Choice: (A) 3:4 (B) 3:5 (C) 4:5 (D) 16:15 (E) 12:13
Answer: D
In an election between two candidates A and B, the number of valid votes received by A exceeds those received by B by 15% of the total number of votes polled. If 20% of the votes polled were invalid and a total of 4720 votes were polled, then how many valid votes did B get? Answer Choice: (A) 1534 (B) 2999 (C) 2834 (D) 2777 (E) 2991
Answer: A
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero? Answer Choice: (A) 22 (B) 28 (C) 29 (D) 20 (E) 21
Answer: D
A man invested an amount of Rs.8000 in a fixed deposit scheme for 2 years at compound interest of 5% per annum. How much amount will Albert get on maturity of the fixed deposit ? Answer Choice: (A) Rs.8600 (B) Rs.8620 (C) Rs.8820 (D) Rs. 8840 (E) Rs. 8940
Answer: C
At the wholesale store you can buy an 8-pack of hot dogs for $1.55, a 20-pack for $3.05, and a 250-pack for $22.95. What is the greatest number of hot dogs you can buy at this store with $211? Answer Choice: (A) 1,108 (B) 2,100 (C) 2,108 (D) 2,124 (E) 2,180
Answer: E
Fresh grapes contain 90% by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 5 kg of fresh grapes? Answer Choice: (A) 2 kg (B) 2.4 kg (C) 2.5 kg (D) 10 kg (E) 0.625
Answer: E
Find the number of shares that can be bought for Rs.8800 if the market value is Rs.20 each with brokerage being 2.5%. Answer Choice: (A) 429.3 (B) 270 (C) 177 (D) 166 (E) 111
Answer: A
A fast food restaurant sells chicken in orders of 6, 9, and 20.
What is the largest number of pieces of chicken you cannot order from this restaurant? Answer Choice: (A) 23 (B) 33 (C) 43 (D) 53 (E) 63
Answer: C
A hat company ships its hats, individually wrapped, in 8-inch by 10-inch by 12-inch boxes. Each hat is valued at $7.50. If the company’s latest order required a truck with at least 384,000 cubic inches of storage space in which to ship the hats in their boxes, what was the minimum value of the order? Answer Choice: (A) $3,000 (B) $1,350 (C) $1,725 (D) $2,050 (E) $2,250
Answer: A
Free notebooks were distributed in a class among all the students. Each student got notebooks which were one-eighth of the number of student. If number of student been half, then each child would have received 16 notebooks in total. Find the total number of books distributed among students? Answer Choice: (A) 435 (B) 456 (C) 467 (D) 489 (E) 512
Answer: E
A dealer purchases 15 articles for Rs. 25 and sells 12 articles for Rs. 30. Find the profit percentage? Answer Choice: (A) 60% (B) 50% (C) 80% (D) 70% (E) 53%
Answer: B
Two pipes can separately fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is full, a leak develops in the tank through which one-third of water supplied by both the pipes goes out. What is the total time taken to fill the tank? Answer Choice: (A) 18 hrs (B) 16 hrs (C) 15 hrs (D) 12 hrs (E) 10 hrs
Answer: B
A & B started one company. They invest Rs. 1,00,000/- each. They deposit the money to Bank. Bank give 1% interest per month. After 2 years B left from company and asked A to return the money with interest. A says it will take time to release the FD and he assure B to give the money withinterest @0.5%. B Agreed this. What is the profit of A? Answer Choice: (A) 48000 (B) 12000 (C) 36000 (D) 24000 (E) 30000
Answer: C
At a restaurant, glasses are stored in two different-sized boxes. One box contains 12 glasses, and the other contains 16 glasses. If the average number of glasses per box is 15, and there are 16 more of the larger boxes, what is the total number of glasses T at the restaurant? (Assume that all boxes are filled to capacity.) Answer Choice: (A) 96 (B) 240 (C) T=256 (D) T=384 (E) T=480
Answer: E
A discount electronics store normally sells all merchandise at a discount of 10 percent to 30 percent off the suggested retail price. If, during a special sale, an additional 20 percent were to be deducted from the discount price, what would be the lowest possible price of an item costing $400 before any discount? Answer Choice: (A)  $230.00 (B)  $224.00 (C)  $263.80 (D)  $282.00 (E)  $210.00
Answer: B
A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in 20 hrs and a machine of type S does the same job in 30 hours. If the company used the same number of each type of machine to do the job in 2 hours, how many machines of type R were used? Answer Choice: (A) 4 (B) 5 (C) 6 (D) 8 (E) 9
Answer: C
A letter lock consists of three rings each marked with nine different letters. The number of distinct unsuccessful attempts to open the lock is at the most? Answer Choice: (A) 176 (B) 178 (C) 728 (D) 789 (E) 770
Answer: C
How many words can be formed using the letters of the word “COMPANY”? Answer Choice: (A) 1224 (B) 2434 (C) 3243 (D) 3435 (E) 5040
Answer: E
The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is: Answer Choice: (A) 6 months (B) 8 months (C) 9 months (D) 10 months (E) 15 months
Answer: D
On dividing 15968 by a certain number, the quotient is 89 and the remainder is 37. Find the divisor. Answer Choice: (A) 170 (B) 179 (C) 37 (D) 67 (E) 32
Answer: B
For an integer n greater than 1, n* denotes the product of all the integers from 1 to n inclusive. How many prime numbers are there between 6*+2 and 6*+6, inclusive ? Answer Choice: (A) 1 (B) None of the above (C) 2 (D) 3 (E) 4
Answer: B
Two trains of equal lengths are running at speeds of 30 kmph and 60 kmph. The two trains crossed each other in 30 seconds when travelling in opposite direction. In what time will they cross each other when travelling in the same direction? Answer Choice: (A) 90 sec (B) 75 sec (C) 85 sec (D) 80 sec (E) None of these
Answer: A
Two cars cover the same distance at the speed of 32 and 64 kmps respectively. Find the distance traveled by them if the slower car takes 1 hour more than the faster car. Answer Choice: (A) 73 (B) 38 (C) 64 (D) 83 (E) 93
Answer: C
The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighing 85 kg. What is the weight of the new person? Answer Choice: (A) 75 kg (B) 85 kg (C) 95 kg (D) 65 kg (E) 105 kg
Answer: E
A Steel company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in 24 hrs and a machine of type S does the same job in 12 hours. If the company used the same number of each type of machine to do the job in 2 hours, how many machines of type R were used? Answer Choice: (A) 3 (B) 4 (C) 6 (D) 9 (E) 12
Answer: B
Of the integers between 200 and 799, inclusive, how many do not have digit 2 and 7? Answer Choice: (A)  256 (B)  326 (C)  410 (D)  426 (E)  520
Answer: A
3x^2-6x+3 = 0 Find the above equation find the value of x Answer Choice: (A) 0 (B) 1 (C) 2 (D) 3 (E) 4
Answer: B
In a parallelogram, the length of one diagonal and the perpendicular dropped on that diagonal are 30 and 20 metres respectively. Find its area Answer Choice: (A) 600 m2 (B) 540 m2 (C) 680 m2 (D) 574 m2 (E) None of these
Answer: A
The average of 7 numbers is 24. If each number be multiplied by 5. Find the average of new set of numbers? Answer Choice: (A) 110 (B) 122 (C) 120 (D) 125 (E) 145
Answer: C
In a college election between two rivals, a candidate who got 40% of the total votes polled, was defeated by his rival by 160 votes. The total number of votes polled was Answer Choice: (A) 900 (B) 800 (C) 700 (D) 600 (E) None of these
Answer: B
Krishan and Nandan jointly started a business. Krishan invested four times as Nandan did and invested his money for trible time as compared to Nandan. If the gain is proportional to the money invested and the time for which the money is invested and the total gain was Rs.26000, find the Nandan's earning. Answer Choice: (A) 4000 (B) 1000 (C) 5000 (D) 3000 (E) 2000
Answer: E
A rectangular-shaped carpet that measures x feet by y feet is priced at $44. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet) Answer Choice: (A) xy/360 (B) 9xy/40 (C) 40xy/9 (D) 396xy (E) 396/(xy)
Answer: E
The ratio of two speeds of two trains is 3 to 4. If each of the trains slows its speed 5 km/ hr, what will be the ratio of these two train speeds ? Answer Choice: (A) 3/4 (B) 8/9 (C) 18/19 (D) 23/24 (E) It cannot be determined from the information given
Answer: E
The number obtained by interchanging the two digits of a two-digit number is less than the original number by 45. If the sum of the two digits of the number so obtained is 13, then what is the original number? Answer Choice: (A) 94 (B) 66 (C) 39 (D) 87 (E) 58
Answer: A
A pack of baseball cards consists of 12 outfielder cards and 8 infielder cards. What is the lowest number of outfielder cards that would have to be removed from the pack so that no more than 55 percent of the pack would be outfielder cards? Answer Choice: (A) 4 (B) 5 (C) 6 (D) 7 (E) 8
Answer: B
A man can row upstream at 20 kmph and downstream at 80 kmph, and then find the speed of the man in still water? Answer Choice: (A) 32 kmph (B) 50 kmph (C) 30 kmph (D) 45 kmph (E) 65 kmph
Answer: B
In an office, 30 percent of the workers have at least 5 years of service, and a total of 16 workers have at least 10 years of service. If 90 percent of the workers have fewer than 10 years of service, how many of the workers have at least 5 but fewer than 10 years of service? Answer Choice: (A)  480 (B)  48 (C)  50 (D)  144 (E)  160
Answer: B
9.5 , 9.8 , 9.9 , 9.9 , 9.9 , 10.2 , 10.3 , 10.5
The mean and the standard deviation of the 8 numbers shown above is 10 and 0.296 respectively. What percent of the 8 numbers are within 1 standard deviation of the mean? Answer Choice: (A) 90.75% (B) 85.60% (C) 80% (D) 75.25% (E) 62.5%
Answer: E
A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is? Answer Choice: (A) 5 (B) 8 (C) 1 (D) 6 (E) 1.5
Answer: E
A,B,C can complete a piece of work in 24,8,12 days. Working together, they complete the same work in how many days? Answer Choice: (A) 4 (B) 4/5 (C) 7/9 (D) 10 (E) 24/7
Answer: A
The sum and the product of two numbers are 16 and 15 respectively, the difference of the number is? Answer Choice: (A) 14 (B) 6 (C) 7 (D) 8 (E) 2
Answer: A
In a class, there are 20 boys whose average age is decreased by 2 months, when one boy aged 17 years replaced by a new boy. The age of the new boy is? Answer Choice: (A) 14 years 8 months (B) 15 years (C) 13 years 8 months (D) 17 years 10 months (E) 17 years
Answer: C