Ajay invest rupees 35000 in a bank at 7% p.a. how much more should he invest at % p.a. at the rate of simple interest to get a 8% return on his investment.

In how many years will the sum of money invested at 12.5% p.a. simple interest amounts double.

Suppose you have Rs. 12000 to invest. You have to invest some amount at 10% and the rest at 15%. How much should be invested at each rate to yield 12% on the total amount invested?

Find the number of years in which an amount invested at 8% p.a. simple interest doubles itself.

Rohit invested ₹10,000 at 18% p.a. Three years later, he invested another ₹5000 . What amount will he get after 6 years from the initial investment ?

A man earns Rs 147 as interest after 3 years at 7% per annum. How much did he invest?

If one invests Rs. 10,000 in a bank at a rate of 8% per annum, how long does it take to double the money by compounded interest?