Ashok borrowed Rs.12,000 at some rate per cent compound interest. After a year, he paid back Rs. 4,000. If compound interest for the second year be Rs. 920, find :
(i) the rate of interest charged
(ii) the amount of debt at the end of the second year.
Find the amount of loan to be paid back if the sum borrowed is ₹10,000, at the rate of 11% p.a. simple interest for 3 years.