The compound interest on Rs.30,000 at 7% per annum is Rs. 4347. The period (in years) is:

A man borrows some money at 3% simple interest per annum and lends it to somebody at 5% interest to be compounded annually. By this he makes a profit of Rs.541 at the end of 3 years. The money he borrowed was-

Mr. Sathya invested money in FD. How much will he get on maturity, if Rs. 14,500 is invested at 20 % per annum compound interest for 6 months, compounded quarterly

The compound interest on 12000 for 9 months at 20 % per annum , interest being compounded quarterly is 

If the amount is $$3{3\over 8}$$ times the sum after 3 years at compound interest compounded annually, then the rate of interest per annum is 

A woman invests Rs. 2000 at the start of each year at 5% compound interest per annum. How much will her investment be at the end of the 2^nd year?

In how many years will be Rs. 2,000 amounts to Rs.2,420 at 10% per annum compound interest ?

In how much time compound money at compound interest of half yearly rate of Rs 800 will be Rs 926.10?