The sum of two numbers is 28/25 of the first number. The second number is what percent of the first ?

A water tank is two-fifth full. Pipe A can fill a tank on 10 minutes and pipe B can empty it in 6 minutes. If...

A train 240m long passed a pole in 24 seconds. How long will it take to pass a platform 650m long ?

The H.C.F of two number is 11 and their L.C.M is 693. If one of the numbers is 77 find the other.

Find the compound interest on Tk. 15,625 for 9 months at 16% per annum compounded quarterly.

What is the smallest number to be subtracted from 549162 in order to make it a perfect square ?

The sale price of an article including the sales tax is Tk. 616. The rate of sales tax is 10%. If the shopkeep...