Q21. A sum of money invested at compound interest amounts to Rs. 800 in 3 years and to-Rs. 840 in 4 years. The rate of interest per annum is :
A. 5%
B. 20/3%
C. 4%
D. 5/2%
Q22. Find the compound interest on Rs. 10,000 in 2 years at 4% per annum, the interest being compounded half-yearly.
A. Rs. 986.26
B. Rs. 824.32
C. Rs. 268.39
D. Rs. 748.18
Q23. In how many years will a sum of Rs. 800 at 10% per annum compounded semiannually become Rs. 926.10 ?
A. 4/3
B. 5/2
C. 7/3
D. 3/2
Q24. The effective annual rate of interest corresponding to a nominal rate of 6% per annum payable half – yearly is :
A. 6.09%
B. 6.07%
C. 6.08%
D. 6.06%
Q25. The difference between compound, interest and simple interest on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum ?
A. 8
B. 12
C. 10
D. 19
Q26. Find the compound interest on Rs. 15,625 for 9 months at 16% per annum compounded quarterly.
A. Rs. 1851
B. Rs. 1941
C. Rs. 1951
D. Rs. 1961
Q27. What annual payment will discharge a debt of Rs. 1025 due in 2 years at the rate of 5% compound interest ?
A. Rs. 551.25
B. Rs. 550
C. Rs. 560.75
D. Rs. 560
Q28. A sum of money placed at compound interest doubles itself in 5 years. It will amount to eight times itself at the same rate of interest in :
A. 10 years
B. 7 years
C. 20 years
D. 15 years
Q29. 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 ?
A. Rs. 6240
B. Rs. 3972
C. Rs. 2160
D. Rs. 3120
Q30. The principal that amounts to Rs. 4913 in 3 years at 25/4% per annum compound interest compounded annually, is :
A. Rs. 4085
B. Rs. 3096
C. Rs. 4096
D. Rs. 4076