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big_math_dataset

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The number of boys in a class is 4/5 times the number of girls. Which one of the following numbers cannot represent the total number of children in the class ?
The average marks scored by Ganesh in English, Science, Mathematics and History is less than 16 from that scored by him in English, History, Geography and Mathematics. What is the difference of marks in Science and Geography scored by him?
A house wife saved $2.50 in buying an item on sale. If she spent $25 for the item, approximately how much percent she saved in the transaction?
Find the amount on Rs.4000 in 2 years, the rate of interest being 4% per first year and 5% for the second year?
There are 1500 jelly beans divided between two jars, Jar X and Jar Y. If there are 200 fewer jelly beans in jar X than three times the number of beans in jar Y, how many beans are in jar X?
If the simple interest on a certain amount in at 4% rate 5 years amounted to Rs.2000 less than the principal. What was the principal?
If the average of 201, 202, 204, 205, 206, 209, 209, 210, 212 and x is 207, what is the value of x?
A train 360 m long runs with a speed of 45 km/hr. What time will it take to pass a platform of 130 m long?
The length and breadth of a room are 8 m and 6 m respectively. A cat runs along all the four walls and finally along a diagonal order to catch a rat. How much total distance is covered by the cat?
In a certain game, you perform three tasks. You flip a coin, and success would be heads. You roll a single die, and success would be a six. You pick a card from a full playing-card deck, and success would be picking a spades card. If exactly one of these three tasks is successful, then you win the game. What is the probability of winning?
If y is an integer, which of the following must be an even integer?
At a meeting of 5 Chiefs of Staff, the Chief of Naval Operations does not want to sit next to the Chief of the National Guard Bureau. How many ways can the Chiefs of Staff be seated around a circular table?
If 11.25 m of a uniform iron rod weight 42.75 kg, what will be the weight of 6 m of the same rod ?
If a and b are positive integers of Y such that a/b=2.86, which of the following must be a divisor of a?
The cost of 2 chairs and 3 tables is Rs.1300. The cost of 3 chairs and 2 tables is Rs.1200. The cost of each table is more than that of each chair by?
Robert is travelling on his cycle andhas calculated to reach point A at 2 PM. if he travels at 10 kmph, he will reach there at 12Pm if he travels at 15 kmph. At what speed musthe travel to reach A at 1 PM?
select which is different..342,511,126,215.
A man invests Rs. 7,000 at the rate of 5% per annum. How much more should he invest at the rate of 8%, so that he can earn a total of 6% per annum?
If xy > 0, which of the following must be negative?
One tap, working alone at its maximum constant rate, can fill a certain sink in 287 seconds. A second tap, working alone at its maximum constant rate, can fill the same sink in 283 seconds. If both taps work together at their respective maximum constant rates, the time it will take to fill the sink is closest to
A BAG CONTAINS 6 RED AND 4 BLUE BALLS .2 BALLS ARE DRAWN AT RANDOM. FIND THE PROBABILITY THAT THEY ARE OF SAME COLOUR.
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
A man walks at a speed of 6 km/hr and runs at a speed of 7 km/hr. How much time will the man require to cover a distance of 10 1/2 km, if he completes half of the distance, i.e., (5 1/4) km on foot and the other half by running?
A sucrose solution contains 10 grams of sucrose per 100 cubic centimeters of solution. If 60 cubic centimeters of the solution were poured into an empty container, how many grams of sucrose would be in the container?
The workforce of Company X is 60% female. The company hired 20 additional male workers, and as a result, the percent of female workers dropped to 55%.How many employees did the company have after hiring the additional male workers?
The product of the squares of two positive integers is 9. How many pairs of positive integers satisfy this condition?
If xy ≠ 0 and x^2y^2 − 3xy = 28, which of the following could be y in terms of x? I. 1/(2x) II. -4/x III. 7/x
4, 7, 13, 25, 49, (...)
What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm?
For a finite sequence of non zero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 3, -3, 2, 5, -4, -6 ?
It is required to seat 3 boys and 2 girls in a row so that the girls occupy the even places. How many such arrangements are possible?
The price of a jacket is reduced by 25%. During a special sale the price of the jacket is reduced another 20%. By approximately what percent must the price of the jacket now be increased in order to restore it to its original amount?
walking at ¾ of his usual speed ,a man is late by 2 ½ hr. the usual time is
United Telephone charges a base rate of $6.00 for service, plus an additional charge of $0.25 per minute. Atlantic Call charges a base rate of $12.00 for service, plus an additional charge of $0.20 per minute. For what number of minutes would the bills for each telephone company be the same?
Eight people are on an elevator that stops at exactly 8 floors. What is the probability that exactly one person will push the button for each floor?
How long does a train 150 m long traveling at 36 kmph takes to cross a signal post?
A boat running downstream covers a distance of 20 km in 2 hours while for covering the same distance upstream,it takes 5 hours.What is the speed of the boat in still water ?
The editor of an anthology of short stories will select authors from a pool of 11 authors, of which 4 are female. If the anthology is to include the work of 7 authors of which at least 2 are female, in how many ways can the editor select the authors?
Tough and Tricky questions: Arithmetic. (14^2 + 14^2)/7^2 =
Find out Difference between SI and CI if p=1000000 r=4% ant t=3 yr?
The length of rectangle is thrice its breadth and its perimeter is 96 m, find the area of the rectangle?
Find the curved surface area, if the radius of a cone is 21 m and slant height is 15 m?
A train is 360 meter long is running at a speed of 54 km/hour. In what time will it pass a bridge of 140 meter length?
Find the value of (70+ 28/100) × 100
A circular well with a diameter of 2 meters, is dug to a depth of 14 meters. What is the volume of the earth dug out.
What is the smallest five digit number that is divisible by 15, 32, 45, and 54?
Horse started to chase a dog as it relived stable two hours ago. And horse started to ran with average speed of 22kmph, horse crossed 10 meters road and two ponds with depth 3 meters and it crossed 2 small streets with 200 meters length. After travelling 6 hours, 2 hours after the sunset it got dog. Compute the speed of dog?
A & B can make paintings in 6 days, B & C can can make those paintings in 10 days. If A, B & C together can finish the work in 4 days, then A & C together will do it in ________ days.
a = 4^15 - 625^3 and a/x is an integer, where x is a positive integer greater than 1, such that it does NOT have a factor p such that 1 < p < x, then how many different values for x are possible?
the average distance between the sun and a certain planet is approximatly 2.6 10^9 inches. which of the following is the closest to the average distence between sun and the planet in kelometers? (1 km is approx 3.9 x 10^4 inches)
If W is the set of all the integers between 59 and 99, inclusive, that are either multiples of 3 or multiples of 2 or multiples of both, then W contains how many numbers?
Which of the following equations has a solution in common with x^2 + 5x + 4 = 0?
A is faster than B. A and B each walk 24 km. The sum of their speeds is 7 km/hr and the sum of times taken by them is 14 hours. Then, A's speed is equal to?
A train running at the speed of 52 km/hr crosses a pole in 9 sec. What is the length of the train?
Approximately how many revolutions will be made by a car tire with a 14-inch diameter if the car travels 1 mile?
A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?
In X game of billiards, X can give Y 20 points in 60 and he can give Z 50 points in 60. How many points can Y give Z in X game of 100?
A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 5 : 6 : 7 : 8 : 9. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is
20, 19, 17, ?, 10, 5
.05% of seeds in a packet do not germinate. How many seeds must be in the packet for 6 seeds not to germinate?
Two pipes A and B can separately fill a tank in 2 minutes and 15 minutes respectively. Both the pipes are opened together but 4 minutes after the start the pipe A is turned off. How much time will it take to fill the tank?
Lucy invested $10,000 in a new mutual fund account exactly three years ago. The value of the account increased by 10 percent during the first year, increased by 9 percent during the second year, and decreased by 10 percent during the third year. What is the value of the account today?
The average age of 25 students in a class is 12years. If teacher's age is also included then average increases 1year then find the teacher's age?
A house wife saved $4 in buying an item on sale. If she spent $29 for the item, approximately how much percent she saved in the transaction?
Uncle Bruce is baking chocolate chip cookies. He has 36 ounces of dough (with no chocolate) and 13 ounces of chocolate. How many ounces of chocolate are left over if he uses all the dough but only wants the cookies to consist of 20% chocolate?
In a certain production lot, 40 percent of the toys are red and the remaining toys are green. Half of toys are small and half are large. If 10 percent of the toys are red and small, and 40 toys are green and large. How many of the toys are red and large?
Find the area of right angled triangle whose hypotenuse is 15 cm and one of the sides is 12 cm.
During a two-week period, the price of an ounce of silver increased by 8 percent by the end of the first week and then decreased by 12 percent of this new price by the end of the second week. If the price of silver was x dollars per ounce at the beginning of the two-week period, what was the price, in dollars per ounce, by the end of the period?
Soja finished 2/3 of a book. She calculated that she finished 100 more pages than she has yet to read. How long is her book?
A clock is started at noon. By 10 minutes past 2, the hour hand has turned through how many degrees?
If g is the smallest positive integer such that 3,150 multiplied by g is the square of an integer, then g must be
A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is?
A shopkeeper sold 30 articles at the cost price of 35 articles. Then find the profit% or lost%
How many kg of pure salt must be added to 100kg of 10% solution of salt and water to increase it to a 30% solution?
A can do a piece of work in 15 days and B in 20 days. They began the work together but 5 days before the completion of the work, A leaves. The work was completed in?
If n = (33)^43 + (53)^33 what is the units digit of n?
The annual interest rate earned by an investment increased by 10 percent from last year to this year. If the annual interest rate earned by the investment this year was 1 percent, what was the annual interest rate last year?
The average employee age of a certain company which has 80 employees is 38. One employee aged 60 got retired and replaced by a fresher of age 22. What is the new average age of employees?
A watch was sold at a loss of 10%. If it was sold for Rs.140 more, there would have been a gain of 4%. What is the cost price?
A committee of 4 people is to be selected from 8 people. How many different committees are possible?
A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?
A, B, and C working alone can finish constructing a house in 6, 9, and 18 hours respectively. A starts alone and works for 1 hour. He is then joined by B and they work together for 1 hour. Finally C joins them and they all work together to finish the work. If they start working at 9 am, at what time will they finish?
If k^3 = m^3, which of the following must be true?
A question paper consists of five problems, each problem having three internal choices. In how many ways can a candidate attempt one or more problems?
7122,6521,8332,4743,9911,387? find the value of the question tag.
The average of 25 result is 18.The average of 1st 12 of them is 14 & that of last 12 is 17.Find the 13th result.
Evaluate: 13 + sqrt(- 4 + 5×3÷3) =?
If a tire rotates at 400 revolutions per minute when the car is traveling 120km/h, what is the circumference of the tire?
How many 5-digit positive integers exist the sum of whose digits are odd?
In a division sum, the remainder is 6 and the divisor is 5 times the quotient and is obtained by adding 2 to the thrice of the remainder. The dividend is:
Machines A and B produce bottles at their respective constant rates. Machine A produces k bottles in 3 hours and machine B produces k bottles in 5 hours. How many hours does it take machines A and B, working simultaneously, to produce 16k bottles?
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
A rectangular floor is covered by a rug except fo a strip p meters along each of the four edges. If the floor is m meters by g meteres, What is the area of the rug in square meters?
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?
The closest approximation of A(69.28 × 0.004)/0.03 is
97 students take part in a test and the median score is 85. Which of the following descriptions must be correct? I.At least 49 students’ score are less than 85. II. At least 49 students’ score are equal to or more than 85 III. At most 49 students’ score are equal to or more than 85.
A certain hall contains two cuckoo clocks. If the first clock chirps 20 times per hour and the second clock chirps 9 times per hour, and both clocks chirp for the first time at 2:03 pm, at what time will the first clock have chirped three times as many times as the second clock can chirp per hour?
Each factor of 200 is inscribed on its own plastic ball, and all of the balls are placed in a jar. If a ball is randomly selected from the jar, what is the probability that the ball is inscribed with a multiple of 40?
The flow of water through a drainage pipe was monitored for a 3-hour period. In the second hour, the rate of flow was 24 gallons per hour, which was 50 percent faster than the rate of flow for the first hour. If 25 percent more water flowed through the pipe in the third hour than it did in the second, how many gallons of water flowed through the pipe during the entire three hours?
A certain country had a total annual expenditure of $1.2x10^12. If the population of the country was 240 million last year, what was the per capita expenditure?