162/(900*0.09)=2 years
How much times (in years) will it take for an amount of Rs. 450 to yield Rs. 162 an interest at 4.5% per annum of simple interest?
The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. What is the simple interest on the same sum for triple the time at half the rate percent per annum?
