If `$300` is invested at `3%`, compounded annually, how log (to the nearest year) will it take for the money to increase by `50%` ?

A sum of Rs. 10,000 is invested at 8% p.a. compound interest? How long will it take for the total sum of money to be twice the amount invested?

8,000 were invested at 5% per annum C.I. compound annually . Find : the interest for the third year.

Rupees 10,000 is invested at 6% interest compounded annually. How long will it take to accumulate Rs. 20, 000 in the account?

Rupees 10,000 is invested at 6% interest compounded annually. How long will it take to accumulate Rs. 20, 000 in the account?

Rupees 10,000 is invested at 6% interest compounded annually. How long will it take to accumulate Rs. 20, 000 in the account?

Rupees 10,000 is invested at 6% interest compounded annually. How long will it take to accumulate Rs. 20, 000 in the account?

George invests $1,000 into an account that he hopes will earh 12% interest annually. How many years (rounded to the nearest year) will it take his investment to double in value?

On a certain sum of money, invested at the rate of 5% per annum compounded annually, the difference between the interest of the first year and the interest of the third year is रु 61.50. Find the sum.

A sum of money invested for 2 years at 20% compounded annually and similar money invested for 3 years on simple interest at 10% per annum. If the difference between interests is Rs. 280, then find the sum of money.