BBA-DBE Bangalore: ArithmeticSimple & Compound Interest. Free, no login required.

A sum of money is invested at a compound interest of 21% per annum compounded annually for 1 year. An equal sum is invested at 20% per annum compound interest compounded half yearly for 1 year. Which of the following statements is correct?

The simple interest on a certain sum of money invested at 7.5% per annum for 4 years is ₹243. What was the sum (in ₹) invested?

A bank offers $5\%$ compound interest per annum, calculated on half-yearly basis. A customer deposits $₹3200$ each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is: