Rs 20 is the true discount on Rs 260 due after a certain time. What will be the true discount on the same sum due after half of the former time , the rate of interest being the same ?
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?
The discount on a certain sum is due for 3 years, hence it is Rs. 100. But the interest on the same sum for the same period is Rs.110. Find the sum and the interest rate.
There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 1,600 after 3 years at the same rate?
