Find the amount and the interest on Rs. 16000 for 3 years at 5% per annum compounded annually.

9 Find the amount and the compound interest on Rs. 2500 for 2 years at 10% per annum compounded annually. 10 Find the compound interest on Rs. 5000 for 1 year at 8% per annum compounded half-yearly. 12 A sum of money amounts to Rs. 11910.16 in years at 12% per annum interest being compounded semi annually. Find the sum. 13 The population of a village is 50000. It increases by 5% every year. Find the population at the end of 2 years.