The compound interest earned in two years at 8 % per annum is 3993.6 . What is the sum invested? 

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). 

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

If the compound interest on a certain sum for two consecutive years is Rs.220 and Rs.242, then the rate of interest per annum is 

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?

Vijay lent Rs.5000. At what rate percent per annum he lent the money?
Statement I: The difference between the simple interest and compound interest on same money is Rs.60.
Statement II: The simple interest obtained after 4 years is Rs.300.
Statement III: The difference between compound interest and simple interest on Rs.60,000 in 2 years is Rs.1350.

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

What is a difference between simple interest and compound interest in 1 year at a rate of 10 percent on an amount of Rs. 1200. If interest is half yearly compounded?