Quantitative Aptitude - Arithmetic Ability Questions

The value of x for which the expressions 5x + 17 and 17x - 5 become equal is _____.

If sec -5π/4 = x, then the value of x is

On Selling a toy at 20/31 of the marked price there is a loss of 20%. What will be the ratio of marked price and cost price of the toy?

When a number is increased by 21, it becomes 114% of itself. What is the number?

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21⁄2 hours to fill the tank. The leak can drain all the water off the tank in how many hours?

Two numbers are 30% and 37% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?