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...

If a number is decreased by 4 and divided by 6, the result is 8. What would be the result if 2 is subtracted f...

A 70cm long wire is to be cut into two pieces such that one piece will be 2/5 as long as the other. How many c...

The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is :

What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years an...