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A cistern can be filled by a tap in 2 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled ? |
Sakshi can do a piece of work in 20 days.Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work : |
Two pipes can fill a tank in 18 minutes and 15 minutes. An outlet pipe can empty the tank in 54 minutes. If all the pipes are opened when the tank is empty, then how many minutes will it take to fill the tank? |
Nicole cycles at a constant rate of 10 kilometers per hour, and is passed by Jessica, who cycles at a constant rate of 30 kilometers per hour. If Jessica cycles at her constant rate for x minutes after passing Nicole, then stops to wait for her, how many minutes will Jessica have to wait for Nicole to catch up to her? |
Two kinds of Vodka are mixed in the ratio 1:2 and 2:1 and they are sold fetching the profit 20% and 20% respectively. If the vodkas are mixed in equal ratio and the individual profit percent on them are increased by 4/3 and 5/3 times respectively, then the mixture will fetch the profit of |
John has 10 pairs of matched socks. If he loses 13 individual socks, what is the greatest number of pairs of matched socks he can have left? |
The income derived from a Rs. 100, 13% stock at Rs. 105, is : |
It rained as much as on Wednesday as on all the other days of the week combined. If the average rainfall for the whole week was 5 cms, How much did it rain on Wednesday? |
If 15 people contributed a total of $30.00 toward a gift and each of them contributed at least $1.00, then the maximum possible amount any one person could have contributed is |
After distributing the sweets equally among 25 children, 8 sweets remain. Had the number of children been 28, 22 sweets would have been left after equal distribution. What was the total number of sweets ? |
What will be the product of (50-1)*(50-2)*(50-3)*..............*(50-99)*(50-100)? |
Sonika deposited Rs.8000 which amounted to Rs.11200 after 3 years at simple interest. Had the interest been 2% more. She would get how much? |
In an examination, the percentage of students qualified to the students appeared from school 'P' is 70%. In school 'Q', the number of students appeared is 30% more than the students appeared from school 'P' and the number of students qualified from school 'Q' is 50% more than the students qualified from school 'P'. Wha... |
Rs. 50000 is divided into two parts One part is given to a person with 10% interest and another part is given to a person with 20 % interest. At the end of first year he gets profit 7000 Find money given by 10% ? |
A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 7 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold? |
Ram and Shakil run a race of 2000 meters. First, Ram gives Shakil a start of 200 meters and beats him by one minute. If , Ram gives Shakil a start of 6 minutes Ram is beaten by 1000 meters. Find the time in minutes in which Ram and Shakil can run the races separately. |
Ravi purchased a refrigerator and a mobile phone for Rs. 15000 and Rs. 8000 respectively. He sold the refrigerator at a loss of 4 percent and the mobile phone at a profit of 9 percent. Overall he make a. |
A wolf eats 5.5 Kg of meat in 3 days. A baby tiger eats 3 Kg of meat in 3 days. How much meat can the two combined eat in three days? |
How many different 6-letter sequences are there that consist of 2A, 60B's and 10C's ? |
The average of first 10 even numbers is? |
In what time will Rs.4000 lent at 3% per annum on simple interest earn as much interest as Rs.5000 will earn in 5 years at 4% per annum on simple interest? |
A man is 26 years older than his son. In two years, his age will be twice the age of his son. The present age of this son is |
How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ? |
In 6 years, A will be thrice as old as B was 4 years ago. If A is now 6 years older than B, find the present age of B. |
A driver just filled the car's gas tank with 45 liters of gasohol, a mixture consisting of 5% ethanol and 95% gasoline. If the car runs best on a mixture consisting of 10% ethanol and 90% gasoline, how many liters of ethanol must be added into the gas tank for the car to achieve optimum performance? |
In a group of cows and chickens, the number of legs was 14 more than twice the number of heads. The number of cows was: |
If a particular player is always chosen, in how many ways cana cricket-be chosen out of 15 players? |
A, B and C can do a work in 6, 8 and 12 days respectively doing the work together and get a payment of Rs.1800. What is B’s share? |
Which of the following is equal to 1(4/5)%? |
Donna, Chris, and Austin have a total of $93 in their wallets. Donna has $7 more than Chris. Austin has 3 times what Donna has. How much money has Donna? |
In a certain book club, the members are voting between two books – a mystery novel and a biography – to decide which book the group will read next. There are 3 times as many votes for the mystery novel as there are votes for the biography. The ratio of biography votes to the mystery votes is |
If (1+p)q=q, which of the following must be true? |
A and B write a test A says " i got a third of the ques. wrong" b says " i got 5 wrong" together they got three quarters of the questions correct.how many did A get correct. |
a = 5^10 - 625^2 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? |
Working together, 7 identical pumps can empty a pool in 6 hours. How many hours will it take 3 pumps to empty the same pool? |
If Juan takes 13 seconds to run y yards, how many seconds will it take him to run x yards at the same rate? |
A shop sells 2 typesof shirts: cotton and woolen. A pair of cottonshirts is sold at 30% profit and a pair of woolen shirts is sold at 50%50% profit. The salesman has calculated that if he sells 100% more woolen shirts than cottonshirts, his overall profit will be 45%. However, he ends up selling 50%50% more cotton trou... |
A box contains 3 blue marbles, 4 red, 4 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue? |
The length of a room is 5.5 m and width is 3.75 m. Find the cost of paying the floor by slabs at the rate of Rs. 1000 per sq.metre. |
Which of the following is closest to (8!-7!)/(8!+7!)? |
Two pipes A and B can separately fill a tank in 12 and 15 minutes respectively. A third pipe C can drain off 45 liters of water per minute. If all the pipes are opened, the tank can be filled in 15 minutes. What is the capacity of the tank? |
There are seven thieves. They stole diamonds from a diamond merchant and ran away. While running, night sets in and they decide to rest in the jungle.
When everybody was sleeping, two of them woke up and decided to divide the diamonds equally among themselves. But when they divided the diamonds equally, one diamond is ... |
What is the units digit of the expression 14^7−15^4? |
Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 7 seconds. What is the length of the fast train ? |
What is the smallest positive integer K such that the product of 61347 x K is a perfect square? |
Leila is playing a carnival game in which she is given 4 chances to throw a ball through a hoop. If her chance of success on each throw is 1/5, what is the chance that she will succeed on at least 3 of the throws? |
The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8, is : |
Ram is 8 years younger than Sundar, and Mahi is thrice as old as Ram. If S is Sundar’s age and M is Mahi’s age, what is the relationship between S and M? |
If cost of 15 eggs be 82 rupees, then find out the cost of 5 dozen eggs. |
4, 12, 48, 240, 1440, 10080,(...) |
If (10^4 * 3.456789)^14 is written as a single term, how many digits would be to the right of the decimal place? |
When m is divided by 9, the remainder is 2. When m is divided by 13, the remainder is 3. If 1 < m < 300, what is the greatest possible value of m? |
The ratio of numbers is 3:4 and their H.C.F is 5. Their L.C.M is: |
How many different ways can you select a pilot and a co pilot if you have 100 people to choose from? |
A driving school claims an average test pass rate of 76.8 percent. What is the least number of pupils required to achieve this result? |
A committee is reviewing a total of 30x black-and-white films and 6y color films for a festival. If the committee selects y/x% of the black-and-white films and all of the color films, what fraction of the selected films are in color? |
A 900 m long train crosses a platform in 39 sec while it crosses a signal pole in 18 sec. What is the length of the platform? |
A certain number when divided by 39 leaves a remainder 18, what is the remainder when the same number is divided by 13? |
A is thrice as efficient as B and is, therefore, able to finish a piece of work 10 days earlier than B. In how many days A and B will finish it together? |
Ashok secured average of 79 marks in 6 subjects. If the average of marks in 5 subjects is 74, how many marks did he secure in the 6th subject? |
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? |
Three persons A, B and C started new business. A & C invested amounts in the ratio 2:1, whereas the ratio between amounts invested by A & B was 3:2, If Rs 157300 was their profit, how much amount did B receive? |
If a,b, and c are consecutive positive integers and a>b>c, what can be the value of (a^2-b^2)(b^2-c^2)? |
Two trains are moving at 80 kmph and 70 kmph in opposite directions. Their lengths are 150 m and 100 m respectively. The time they will take to pass each other completely is? |
The average of 13 numbers is 10.9. If the average of the first seven numbers is 10.5 and that of the last seven numbers is 11.4, then the middle number is |
The maximum number of student amoung them 1001 pens and 910 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is : |
An article is bought for Rs.675 and sold for Rs.900, find the gain percent? |
A pump can fill a tank with water in 2 hours. Because of a leak, it took 2x1/3 hours to fill the tank. The leak can drain all the water of the tank in |
A parking garage rents parking spaces for $10 per week or $20 per month. How much does a person save in a year by renting by the month rather than by the week? |
How many words can be formed by using all letters of the word “BIHAR” |
In a certain pond, 40 fish were caught, tagged, and returned to the pond. A few days later, 40 fish were caught again, of which 2 were found to have been tagged. If the percent of tagged fish in the second catch approximates the percent of tagged fish in the pond, what is the approximate number of fish in the pond? |
The ratio of two quantities is 1 to 2. If each of the quantities is increased by 15, what is the ratio of these 2 new quantities? |
Line k is in the rectangular coordinate system. If the a-intercept of k is -2, and the y-intercept is 3, which of the following is an equation of line k? |
In 1979 approximately 1/3 of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was 1/3 the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these pas... |
At a certain fruit stand, the price of each apple is 50 cents and the price of each orange is 60 cents. Mary selects a total of 10 apples and oranges from the fruit stand, and the average (arithmetic mean) price of the 10 pieces of fruit is 56 cents. How many oranges must Mary put back so that the average price of the ... |
A 300 m long train crosses a platform in 39 sec while it crosses a signal pole in 26 sec. What is the length of the platform? |
A is twice as good a workman as B. Together they finish a piece of work in 18 days. Then B can do a similar work by himself in : |
The sum of the ages of 4 children born at the intervals of 4 years each is 48 years. What is the age of the youngest child? |
The product of the prime integers between 23 and 35, inclusive, is: |
A flagpole 18 meters high casts a shadow of length 45 meters. If a building under similar conditions casts a shadow of length 65 meters, what is the height of the building (in meters)? |
If the L.C.M of two numbers is 600 and their product is 18000, find the H.C.F of the numbers. |
What will come in place of the x in the following Number series? 46080, 3840, 384, 48, 8, x |
There are 4 different letters and 4 addressed envelopes.In how many ways can the letters be put in the envelopes so that atleast one letter goes to the correct address ? |
A certain number of workers can do a work in 75 days. If there were 10 workers more it could be finished in 10 days less. How many workers are there? |
If a fair 6-sided die is rolled three times, what is the probability that exactly one 5 is rolled? |
An empty container is filled with pure alcohol. The alcohol is slowly allowed to run out and when the container is 1/4 empty ,it is replaced with water . Next, when the container is half empty it is again filled with water. Finally, when it is empty, it is again filled with water. What percentage of container is alcoho... |
A train passes a man standing on the platform. If the train is 170 meters long and its speed is 72 kmph, how much time it took in doing so? |
In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ? |
What is the probability of getting a number less than 4 when a die is rolled? |
A circular rim A having a diameter of 54 inches is rotating at the rate of x inches/min. Another circular rim B with a diameter of 27 inches is rotating at the rate of y inches/min. What is the value of y in terms of x, if both the rims reach their starting positions at the same time after every rotation. |
A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 130 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? |
The average of first eight prime numbers which are odd is? |
(856942 x 555) = ? |
There were 35 students in a hostel. Due to the admission of 7 new students, the expenses of mess were increased by 42 per day while the average expenditure per head diminished by 1. What was the original expenditure of the mess? |
The ratio 6 : 3 expressed as a percent equals |
In an election only two candidates contested. A candidate secured 70% of the valid votes and won by a majority of 192 votes. Find the total number of valid votes? |
Two trains run in opposite directions on a circular track. Train A travels at a rate of 4π miles per hour and Train B runs at a rate of 6π miles per hour. If the track has a radius of 6 miles and the trains both start from Point E at the same time, how long, in hours, after the trains depart will they again meet at Poi... |
The distance from City A to City B is 120 miles. While driving from City A to City B, Cara drives at a constant speed of 30 miles per hour. Dan leaves City A 90 minutes after Cara. What is the minimum constant speed in miles per hour that Dan must exceed in order to arrive in City B before Cara? |
At a certain fruit stand, the price of each apple is 40 cents and the price of each orange is 60 cents. Mary selects a total of 30 apples and oranges from the fruit stand, and the average (arithmetic mean) price of the 30 pieces of fruit is 56 cents. How many oranges must Mary put back so that the average price of the ... |
19/6 = 4/27 . which method did you use to determine whether this proportion is true or false? |
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