Q.21. The simple interest on a certain sum of money for 3 year at 8% per annum is half the compounded interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:
(A) Rs.1550
(B) Rs. 1650
(C) Rs. 1750
(D) Rs. 2000
Q.22. The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4 % per annum is Rs. 1. The sum (in Rs.) is:
(A) 625
(B) 630
(C) 640
(D) 650
Q.23. The effective annual rate of interest corresponding to a nominal rate of 6% per annum payable half-yearly is:
(A) 6.06%
(B) 6.07%
(C) 6.08%
(D) 6.09%
Q.24. 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) 3%
(B) 4%
(C) 5%
(D) 6%
Q.25. What annual payment will discharge a debt of Rs. 1025 due in 2 years at the rate of 5% compound interest?
(A) Rs. 550
(B) Rs. 551.25
(C) Rs. 560
(D) Rs. 560.75
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