Find the number of years for which the compound interest of ₹9000 is ₹1890, at the rate of 10 % per annum.
Find the compound interest at the rate of 10% per annum for two years on that principal which in two years at the rate of 10% per annum gives Rs. 200 as simple interest.
Ramesh invests Rs. 12,800 for 3 years at the rate of 10% per annum compound interest. Find