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A glucose molecule contains 6 carbon, 12 hydrogen and 6 oxygen atoms. During photosynthesis, green plants create glucose daily. If, over a period of 12 days, an eucalyptus plant (a green plant) creates 12,000 molecules of glucose then approximately how many more atoms of hydrogen than carbon are created on average per ... |
If (x^2 + 1)y=7, which of the following is not a possible value for y? |
Consider the sets Tn = {n, n + 1, n + 2, n + 3, n + 4}, where n = 1, 2, 3,...., 84. How many of these sets contain 6 or any integral multiple thereof (i.e., any one of the numbers 6, 12, 18, ...)? |
Seller selling an apple for Rs.18, a Seller loses 1/6th of what it costs him. The CP of the apple is? |
How many three digit number formed by using 2,3,4,5,6,7 once such that number is divisible by 15. |
What is the present worth of Rs. 154 due in 2 years at 5% simple interest per annum? |
An equilateral triangle T2 is formed by joining the mid points of the sides of another equilateral triangle T1. A third equilateral triangle T3 is formed by joining the mid-points of T2 and this process is continued indefinitely. If each side of T1 is 40 cm, find the sum of the perimeters of all the triangles. |
In what time will a train 120 metres long cross an electric pole, if its speed be 72 km/hr? |
A Cone, a Heme sphere and a Cylinder have equal bases and heights. What is the ratio of their volumes. |
If x and y are different integers, both divisible by 9, then which is not necessarily true? |
The city of Boston decided to reconstruct its major tunnels. It estimated the job would require 612 mini projects spread evenly over an 18 month plan of completion. Only 108 mini projects had been successfully completed after 7 months. At this time, the construction was behind schedule by how many projects? |
In how many ways can 6 black and 2 white chess pieces be arranged in a row such that they occupy alternate places? Assume that the pieces are distinct. |
Company workers decided to raise Rs. 3 lakhs by equal contribution from each. Had they contributed Rs. 50 each extra, the contribution would have been Rs. 3.25 lakhs. How many workers were they? |
A corporation that had $120 billion in profits for the year paid out $200 million in employee benefits. Approximately what percent of the profits were the employee benefits? (Note: 1 billion = 10^9) |
On dividing a number by 357, we get 37 as remainder.On dividing the same number by 17, what will be the remainder ? |
A train passes a station platform in 36 sec and a man standing on the platform in 20 sec. If the speed of the train is 36 km/hr. What is the length of the platform? |
B can be divided by 11 with no remainder. Which of the following expressions could be divided by 11 leaving a remainder of 1? |
How many three letter words are formed using the letters of the word MARCH? |
Two persons starting from the same place walk at a rate of 5kmph and 5.5kmph respectively. What time will they take to be 8.5km apart, if they walk in the same direction? |
The Royal Hawaiian Hotel decorates its Rainbow Christmas Tree with non-flashing white lights and a series of colored flashing lights - red, blue, green, orange, and yellow. The red lights turn red every 20 seconds, the blue lights turn blue every 30 seconds, the green lights turn green every 45 seconds, the orange ligh... |
Rs.100 doubled in 5 years when compounded annually. How many more years will it take to get another Rs.200 compound interest? |
In a certain province in France there are 9 cities. If a single road segment connects only two cities, how many road segments are required in order to connect the cities so that each city is connected to all other cities with a single road segment? |
If X gets 25% more than Y and Y gets 20% more than Z, the share of Z out of Rs.925 will be: |
In a survey of 330 employees, 104 of them are uninsured, 54 work part time, and 12.5 percent of employees who are uninsured work part time. If a person is to be randomly selected from those surveyed, what is the probability that the person will neither work part time nor be uninsured? |
On 8th Dec, 2007 is Saturday falls. What day of the week was it on 8th Dec. 2006 ? |
A basket has 6 apples and 3 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is |
Daniel went to a shop and bought things worth Rs. 25, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items? |
Set A consists of the integers from 5 to 10, inclusive, while set B consists of the integers from 1 to 8, inclusive. How many distinct integers do belong to the both sets at the same time? |
Two trains of equal are running on parallel lines in the same direction at 47 km/hr and 36 km/hr. The faster train passes the slower train in 36 sec. The length of each train is? |
J can dig a well in 16 days. P can dig a well in 24 days. J, P, H dig in 8 days. H alone can dig the well in How many days? |
A jogger running at 9 km/hr along side a railway track is 180 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? |
0,2, 6, 12, 20, 30, 42, ___ |
A hall 36m long and 15m broad is to be paved with stones, each measuring 8dm by 5 dm. The number of stones required is: |
6 workers should finish a job in 8 days. After 3 days came 4 workers join them. How many days D do they need to finish the same job? |
To fill a tank, 100 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to four-fifth of its present ? |
If population of certain city increases at the rate of 5%. If population in 1981 was 185220, then population in 1978 was? |
A and B can do a work in 2 days, B and C in 4 days and C and A in 6 days. In how many days will the work be completed, if all three of them work together? |
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 grocer purchased 80 kg of sugar at 13.50 per kg and mixed it with 120 kg sugar at 16 per kg. At what rate should he sell the mixture to gain 20%? |
On Thursday Mabel handled 90 transactions. Anthony handled 10% more transactions than Mabel, Cal handled 2/3rds of the transactions that Anthony handled, and Jade handled 16 more transactions than Cal. How much transactions did Jade handled? |
10 men and 15 women together can complete a work in 3 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work? |
If 40% of a number exceeds 20% of it by 12, then find the number? |
On six consecutive flips of a coin, what is the probability that all six produce the same result? |
Tough and Tricky questions: Work/Rate Problems.
If it takes 90 workers 3 hours to disassemble the exhibition rides at a small amusement park, how many hours would it take 30 workers to do this same job? |
Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is: |
If it is assumed that 50 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed? |
How many leading zeros (zeros after the decimal point but before the first nonzero digit of a number) are in 1/3!? |
If a job is complete in X days by A, what will be A's one day work? |
Weights of two friends Ram and Shyam are in the ratio 7:5. If Ram's weight is increased by 10% and total weight of Ram and Shyam become 82.8 kg, with an increases of 15%. By what percent did the weight of Shyam has to be increased? |
The average age of Lion,Tiger & Elephant were 4 years ago was 30 years and the age of lion and elephant were 6 years ago was 20 years. The present age of the Tiger is? |
In how many R ways can the wordGMATbe arranged so that no such arrangement has A as the first letter? |
The average of 25 results is 19. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13th result? |
A certain ball team has an equal number of right- and left-handed players. On a certain day, two-thirds of the players were absent from practice. Of the players at practice that day, one-third were right handed. What is the ratio of the number of right-handed players who were not at practice that day to the number of l... |
When n is divided by 27, the remainder is 4. What is the remainder when n + 16 is divided by 7? |
Efrida and Frazer who live 15 miles apart, meet at a restaurant that is directly north of Efrida's home and directly east of Frazer's home. If the restaurant is two miles closer to Efrida's home, than to Frazer's home, how many miles is the restaurant from Frazer's home? |
A car takes 6 hours to cover a distance of 720 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time? |
Anthony and Michael sit on the six member board od directors for compnay X. If the board is to be split up into 2 three-person subcommittees, what percent of all the possible subcommittees that include Michael also include Anthony? |
A man decides to buy a nice horse. He pays $60 for it, and he is very content with the strong animal. After a year, the value of the horse has increased to $70 and he decides to sell the horse. But already a few days later he regrets his decision to sell the beautiful horse, and he buys it again. Unfortunately he has t... |
When throwing 2 dices, and looking at the sum of numbers on the dices - what is the probability to have a sum which is smaller than 5? |
Anup start a bike at 6am. and rides it at 60kmph. Raghu started at 7pm with his car at 80kmph. When will Raghu overtake Anup? |
Sandy invested a certain sum of money at 8% p.a. simple interest for 'n' years. At the end of 'n' years, Sandy got back 2 times the original investment. What is the value of n? |
When two dice are rolled, what is the probability that the sum of the two numbers is 8? |
If a taxi driver charges x cents for the first quarter-mile of a trip and (x/5) cents for each additional quarter-mile, what is the charge, in cents, for a trip whose distance in miles is the whole number y? |
A man sells an article at a gain 15%. If he had bought it at 10% less and sold it for 8 less, he would have gained 25%. Find the cost price of the article. |
It is known that no more than 4 children will be attending a party. What is the smallest number of cookies that must be brought to the party so that each child receives the same number of cookies? |
The average marks obtained by 120 cndidates in a certainexaminationis 35.if the average marks of passed candidate is 39 and that of the failedcandidates is 15,what is the number of candidates who passed the examination |
What is the smallest integer X such that 2X+2 is divisible by 33, 44, 55, and 666? |
The area of a rectangular plot is 15 times its breadth. If the difference between the length and the breadth is 10 metres, what is its breadth? |
Given that x = 2^b – (8^35 + 16^5), which of the following values for b yields the lowest value for |x|? |
For any real number x, the operatoris defined as:
(x) = x(2 − x)
If p + 1 =(p + 1), then p = |
There are 6 working days in a regular week and for each day, the working hours are 10. A man earns Rs. 2.10 per hour for regular work and Rs. 4.20 per hour for overtime. If he earns Rs.525 in 4 weeks, how many hours did he work? |
In the Hillside summer camp there are 50 children. 80% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 10% of the total number of children in the camp. How many more boys must she bring to make that happen? |
12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work? |
If |p+q|=|p-q|, then p*q must be equal to: |
In what time a sum of money double itself at 7% per annum simple interest? |
Franklin has s pairs of shoes, which is 1/5 as many as Bailey and twice as many as Smith. In terms of s, how many pairs of shoes do the three of them have combined? |
On 3,000 invested at a simple interest rate 6 p.c.p.a, 900 is obtained as interest in certain years. In order to earn 1,600 as interest on 4,000 in the same number of years, what should be the rate of simple interest? |
Mukesh borrowed a sum of Rs. 10000 at simple interest from a bank. After two years he takes Rs. 12000 more as loan and discharge all the debt at the end of next 3 years depositing Rs. 27160 to the bank. What is the rate of interest per annum? |
The speeds of three asteroids were compared. Asteroids X-13 and Y-14 were observed for identical durations, while asteroid Z-15 was observed for 2 seconds longer. During its period of observation, asteroid Y-14 traveled three times the distance X-13 traveled, and therefore Y-14 was found to be faster than X-13 by 4000 ... |
Find large number from below question The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 8 as quotient and the 15 as remainder |
Indu gave Bindu Rs.5000 on compound interest for 2 years at 4% per annum. How much loss would Indu has suffered had she given it to Bindu for 2 years at 4% per annum simple interest? |
Four staff members at a certain company worked on a project. The amounts of time that the four staff members worked on the project were in the ratio 2 to 3 to 5 to 6. If one of the four staff members worked on the project for 15 hours, which of the following CANNOT be the total number of hours that the four staff membe... |
Anil and suresh started a business with Rs.50,000 and 40,000 respectively. After 6 months Rakesh joined them with capital of Rs.60,000 They got a profit of Rs.6000, then profit of Rakesh is |
A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 100 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? |
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% |
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that exactly three bulbs are good. |
The telephone company wants to add an area code composed of 2 letters to every phone number. In order to do so, the company chose a special sign language containing 224 different signs. If the company used 222 of the signs fully and two remained unused, how many additional area codes can be created if the company uses ... |
How many different positive integers exist between 10^4 and 10^5, the sum of whose digits is equal to 2? |
Molly's age in 18 years will be six times her age seven years ago. What is Molly's present age? |
Two goods trains each 125 m long are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one? |
A car covers a certain distance at aspeed of 240 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of? |
If (2^14)(25^S) = 5(10^m) what is the value of m ? |
How many integers between 7000 and 8000 that have distinct digits and increase from left to right ? |
Some of the 50% solution of acid was removed and this was replaced with an equal amount of 14% solution of acid. As a result, a 23% solution of acid was obtained. What fraction of the original solution was replaced? |
What will be the output of the following code statements?
Integer a = 12, b = 45, c = 6 print (a × b / c) – c |
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The sum of the first 51 positive even integers is 2550. What is the sum of the even integers from 100 to 200 inclusive? |
In the list 3, 3, 4, 5, 5, 5, 5, 7, 11, 21, what fraction of the data is less than the mode? |
On a game show, there are three tables. Each table has three boxes (one Zonk!, one cash prize, and one Grand Prize). The contestant can choose one box from each table for a total of three boxes. If any of the boxes are a Zonk!, the contestant loses everything. What is the probability of getting NO Zonk! from any of the... |
The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 6 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each? |
How many total number of ways in which b distinct objects can be put into two different boxes is |
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