A certain amount of money earns ₹ 540 as simple interest in 3 years. If it earns compound interest of ₹ 376.20 at the same rate of interest in 2 years, find the principal (in Rupees). 

A, B and C invested amounts in the ratio 3 : 4 : 5 respectively. If the schemes offered compound at the rate of 20 % per annum, 15 % per annum and 10 % per annum respectively, then what will be the ratio of their amounts after 1 year? 

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 

Which of the following monetary policy instruments is used by the RBI to control inflation?

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