At the rate of compound interest 5% per annum, find the amount of Rs. 80000 in `2 1/2` years.

At 5% compound interest per annum the compound interest on Rs. 10000 for 3 years is

If the intertest compounded at the interval of 6 months and the rate of compound interest be 5% per annum, then in how years will Rs. 64000 amount to Rs. 68921?

If the compound interest of some money for 2 years at the rate of compound interest 5% per annum is Rs 615, then find the invested money.

At the rate of 5% compound interest per annum, in how many years will a principal of Rs. 4000 amount to Rs. 4410?

At a certain of compound interest if the amount of Rs. 400 in 2 years be Rs. 441, then when the rate of compound interest is increased by 5% per anum, how much more money will be got after 2 years?

To repay a loan of Rs6450 at a rate of simple interest of 5% per annum in 4 years, find the amount of each instalment.

A certain principal amounts Rs2750 in 2 years at a rate of simple interest of 5% per annum. Then find the rate of simple interest in percent per annum for which the principal amounts Rs3000 in 2 years.

At what rate per cent per annum compound interest, will Rs. 2304 amount to Rs. 2500 in 2 years?

The simple interest of a principal in 1 year and 9 months at the rate of simple interest of 5% per annum is 63Rs more than of the same principal in 2 years and 4 months at the rate of simple interest of 4(1)/(2)% per annum. Find the principal.

Find the difference between compound interest and simple interest on Rs 8,000 in 2 years and at 5% per annum.