Quantitative an...

Which of the following is the smallest number which when divided by 20, 25, 35 and 40, leaves the remainders as 12, 17, 27 and 32, respectively?

A swimming pool can be filled by 5 pumps working for 2 hours each. If one of the pumps is non-functional, then how much extra time would be required to fill the pool?

A sailor travels in a boat 8 km downstream in 40 minutes and returns back to the same point in 1 hour. What is the speed of the boat in still water?

A alone can complete a job in 4 days. He is twice as fast as B, while B is twice as fast as C. If all of them work together, then in how many days would the job get completed?

The average of six numbers is 3.95. If the average of two of them is 3.4, while that of the other two is 3.85, then what is the average of the remaining two numbers?

If 3^x = 1/27, then x is equal to

Which of the following is the smallest number, which when multiplied by 40, gives a perfect square?

Points A and B are p kms apart. Two persons start at the same time from A and B towards each other at the speeds of x kmph and y kmph, respectively. After what interval of time will they meet each other?

The ratio of investments of A and B is 8 : 7 and the ratio of their year end profits is 20 : 21. If B has invested for 12 months, then find the time period of investment of A.

If from 4 to 55, the numbers which are divisible by 3 and the numbers which contain 3 as one of the digits are removed, then how many numbers will be left?