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...

A person crosses a 600m long street in 5 minutes. What is his speed in km per hour ?

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

What will be the compound interest on a sum of Tk. 25000 after 3 years at the rate of 12 p.c.p.a. ?

In a school, 10% of the boys are some in number as 1/4th of the girls. What is the ratio of boys to girls in t...