Compound Interest Practice Test Set 2

The difference between compound interest and simple interest on Rs 80,000 at the same rate of interest per annum for 2 years is Rs 98. What is the rate of interest per annum?

If the difference between CI and SI on a sum of Rs 25,200 for 2 years is Rs 700, find the rate of interest per annum.

Amit borrowed a sum of Rs 25,000 on simple interest. Bhola borrowed the same amount on compound interest (compounded yearly). At the end of 2 years, Bhola had to pay Rs 160 more interest than Amit. The rate of interest charged per annum is:

Sudha invested her savings in schemes A and B in the ratio 3:5, each for 1.5 years. Scheme A offers interest at 20% p.a. compounded 6-monthly, whereas scheme B offers interest at 10% p.a. compounded annually. If the difference between the interests received from A and B is Rs 152.60, then the money invested in scheme B is:

An amount doubles in 5 years with compound interest. How many years will it take for the amount to grow to 8 times its original value?