In what time will ₹ 64,000 amount to ₹ 68,921 at 5 % per annum interest being compounded half yearly? 

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

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?

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?

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

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