The sum of money that will yield Rs. 60 as simple interest at the rate of 6% per annum in 5 years is-

On a sum Rina earn a interest of Rs. 1519 at S.I. in 7 years at 7% p.a. Find the sum.

At what rate of simple interest will a sum of money double in 8 years?

What is the rate of interest per annum for simple interest at which Rs.880 amounts to Rs.913 in years?

A sum of money doubles itself in 7 years at simple interest. In how much time will it become 5 times of itself?

A lends 2500 to B and a certain sum to C at the same time at 7% annual simple interest. If after 4 years, A altogether receives 1120 as interest from B and C, the sum lent to C is-

₹ 1,000 is invested at 5% per annum simple interest. If the interest is added to the Aprincipal after every 10 years, the amount will become 2,000 after

In 5 years, the simple interest on an amount of Rs. X is of the principal. The rate of interest per annum is: