Question

please give correct solutions


1.If the amount after 3 years at the rate of 2 1/2%per annum compounded annually is Rs 10,935.Find the principle
2.Find the difference between simple interest and compound interest on Rs 6400 for 2 years at 6 1/4 p.a.compounded annually.
3.In how many years will a sum of Rs 6400 compounded semi-annually at 5%p.a.amount to Rs.1,32,651

Answer 1

1st question's answer..