1. 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
None of these

Solution:
2. A man saves Rs. 200 at the end of each year and lends the money at 5% compound interest. How much will it become at the end of 3 years?
Rs. 565.25
Rs. 635
Rs. 662.02
Rs. 666.50
None of these

Solution:
3. 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
None of these

Solution:
4. The difference between simple interest and compound interest on Rs. 1200 for one year at 10% per annum reckoned half-yearly is:
Rs. 2.50
Rs. 3
Rs. 3.75
Rs. 4
None of these

Solution:
5. The simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:
Rs. 1550
Rs. 1650
Rs. 1750
Rs. 2000
None of these

Solution:
6. 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?
8
10
12
Cannot be determined
None of these

Solution:
7. 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 compound every 6 months is Rs. 124.50. What is the principal sum?
Rs. 6000
Rs. 8000
Rs. 10,000
Rs. 12,000
None of these

Solution:
8. A person lent out a certain sum on simple interest and the same sum on compound interest at a certain rate of interest per annum. He noticed that the ratio between the difference of compound interest and simple interest of 3 years and that of 20 years is 25 : 8. The rate of interest per annum is:
10%
11%
12%
12 1/2%
None of these

Solution:
9. Mr. Dua invested money in two schemes A and B offering compound interest @8 p.c.p.a and 9 p.c.p.a respectively. If the total amount of interest accrued through two schemes together in two years was Rs. 4818.30 and the total amount invested was Rs. 27,000, what was the amount invested in Scheme A?
Rs. 12,000
Rs. 13,500
Rs. 15,000
Cannot be determined
None of these

Solution:
10. If a sum on compound interest becomes three times in 4 years, then with the same interest rate, the sum will become 27 times in:
8 years
12 years
24 years
36 years
None of these

Solution: