7. Renu Bala deposits Rs 1200 now, Rs 800 two years from now and Rs 1000 five years from now. If the savings bank's rate of interest in 5%, she will receive an amount of Rs X 10 years from now, where X is
10. If a seller recovers his capital along with accumulated compensating interest not in one single lumpsum payment but in periodical equal payments, over time :