The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 15 year? 

The sum for 2 years gives a compound interest of ₹ 3225 at 15 % rate. Then sum is 

A sum of Rs. 2000 amounts to Rs. 4000 in two years at compound interest. In how many years does the same amount becomes Rs. 8000. 

The amount on ₹ 25000 in 2 years at annually compound interest. if the rate for the successive years be 4 % and 5 % per annum respectively is 

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

An amount of money at compound interest grows up to Rs. 3,840 in 4 years and up to Rs. 3,936 in 5 years. Find the rate of interest. 

Sita deposited Rs . 5,000 at 10 % simple interest for 2 years. How much more money will Sita have in her account at the end of two years. If it is compounded semiannually. 

A sum becomes Rs. 2916 in 2 years at 8 % per annum compound interest. The simple interest at 9% per annum for 3 years on the same amount will be