John lent ₹ 2,550 to Mohan at 7.5 percent per annum. If Mohan discharges the debt after 8 months by giving an old television and ₹ 1,422.50, find the price of the television.

Divide ₹ 10,800 into two parts so that if one part is put at 18% per annum S.I. and the other part is put at 20% p.a. S.I. the total annual interest is ₹ 2,060.

Find the amount and the compound interest on ₹ 32,000 for 1 year at 20% per annum compounded half-yearly.