1. 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) 11
(c) 12
(d) None of these

2. The difference between simple and compound interests and compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:

(a) 625
(b) 620
(c) 640
(d) 660

3. The compound interest on a sum of money for 2 years is Rs. 832 and the simple interest on the same sum for the same period is Rs. 800. The difference between the compound interest and the simple interest for 3 years will be:

(a) Rs. 50
(b) Rs. 67
(c) Rs. 98.56
(d) Rs. 75.45

4. The difference between the simple interest on a certain sum at the rate of 10% per annum for 2 years and compound interest which is compounded every 6 months is Rs. 124.05. What is the principal sum?

(a) Rs. 9000
(b) Rs. 8000
(c) Rs. 10,000
(d) Rs. 13,000

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