Class VIII The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is: 3 4 5 6 What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12 p.c.p.a.? Rs. 9000.30 . Rs. 9720 Rs. 10123.20 Rs. 10483.20 There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate ? Rs. 2160 Rs. 3120 Rs. 3972 Rs. 6240 A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Rs. 1600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is: Rs. 120 Rs. 121 Rs. 122 Rs. 123 At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years? 6% 6.5% 7% 7.5% Do you really want to submit this quiz? Cancel Submit Quiz