Mr. Ravi borrows ₹ 16,000 for 2 years. The rate of interest for the two successive years are 10% and 12% respectively. If he repays ₹ 5,600 at the end of first year, find the amount outstanding at the end of the second year.

Calculate the amount of ₹ 30,000 at the end of 2 years 4 months, compounded annually at 10% per annum.

Calculate the amount and the compound interest on ₹ 15,000 for 2 years compounded annually, the rates of interest for successive years being 8% and 9% per annum respectively.

Calculate the amount and the compound interest on ₹ 25,000 for 3 years compounded annually, the rates of interest for successive years being 8%, 9% and 10% respectively.