Question : The simple interest on a certain sum of money at the rate of 5% per annum for 8 years is Rs. 840. The rate of interest for which the same amount of interest can be received on the same sum after 5 years is:

Question : The simple interest on a sum of money in 6 years at the rate of 15% per annum is INR 1,440 less than the simple interest accrued on the same sum in 9 years at 18% per annum. What is the sum of money (in INR)?

Question : If INR 2,000 is invested at a simple interest rate of 5% per annum and the interest is added to the principal after 10 years, then in how many years will it amount to INR 4,000 at the same rate of interest?

Question : The simple interest on a sum of money is $\frac {1}{16}$th of the principal and the number of years is equal to the rate per cent per annum. The rate per annum is:

Question : Rs. P is invested at 5% per annum at simple interest. After $T$ years an interest of Rs. 82 is earned and the amount becomes Rs. 902. What is the value of $T$?