1. a. Nutech Ltd issued 8-year Rs.8,00,000 debentures in January 2018 that matures in January 2026. It plans to create a sinking fund (a fund to repay the debentures in Jan 2026 at its face value ie. Rs.8,00,000) which involves putting a fixed amount every year at the end of each year ( that means the first payment is made in January 2019 and the last payment in January 2026). the company expects the sinking fund to earn 12% per annum. What annual contribution must be made to achieve the objective? What would be the answer if the first payment is made at the beginning of the year, b. Mohan brought a share 15 years ago for Rs.10 and its now selling at Rs.27.60. What is the compounded annual growth rate on his investment in this share?