A sum of money becomes eight times in 3 years if the rate is compounded annually. In how much time, the same amount at the same compound interest rate will become sixteen times?

A sum of money becomes 3 times in 10 years at the rate of compound interest (compounded annually). In how many years will it become 81 times?

A sum of money becomes 9 times in 1 year if compounded half yearly. How much time it will take to become 125 times if compounded yearly.

A sum of money becomes 2-times at the rate of compound interest in 15 years. In how many years, it will becomes 8 times at the same of compound interest?

A sum of money becomes eight times of itself in 3 years at compound interest. The rate of interest per annum is

A sum of money becomes eight times of itself in 3 years at compound interest. The rate of interest per annum is

A sum of money becomes 3 times in 5 years at simple interest. In how many years will the same sum become 6 times at the same rate of simple interest?

A sum of money becomes 16 times of itself in 2 years if compounded half yearly. How much time it will take to becomes 27 times if compounded yearly.

A sum of money becomes four times itself in 5 years at a certain rate of interest, compounded annually. In how many years will it become 16 times itself at the same rate of interest?