If the compound interest rate is 20% per annum compounded half yearly, then what will be the interest for two years on the principal of Rs. 100000?

How much time will it take for an amount of Rs.360 to yield Rs.72 as interest at 5 % p.a of simple interest?

The compound interest earned in two years at 12% per annum Rs 10176. What is the sum (in Rs) invested? 

The compound interest on Rs. 6250 at 12% per annum for 1 year, compounded half-yearly is

A certain sum increases by 50 % in 5 years. Three sums x, y and z are lent for 10, 15 and 20 years respectively. If amount on each sum is equal, then find the ratio of x, y and z. 

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?

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