**Q1. The difference between simple and compound interest on a sum of money at 4% per annum for 2 years is Rs. 8. The sum is- **

(a) Rs. 400

(b) Rs. 800

(c) Rs. 4,000

(d) Rs. 5,000

**Q2. A sum of money placed at compound interest doubles itself in 15 years. In how many years, it would amount to eight times of itself at the same rate of interest?**

(a) 30 years

(b) 45 years

(c) 21 years

(d) 60 years

**Q3. Ram claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 20%, the effective rate of interest becomes-**

(a) 21.5%

(b) 21%

(c) 20%

(d) Cannot be determined

**Q4. The difference between the compound and the simple interest on a sum for 2 years at 10% per annum, when the interest is compounded annually, is Rs. 28. If the yearly interest were compounded half-yearly, the difference in the two interests will be: **

(a) Rs. 44

(b) Rs. 28.35

(c) Rs. 43.41

(d) Rs. 43.29

**Q5. A certain sum of money yields Rs. 1261 as compound interest for 3 years at 5% per annum. The sum is: **

(a) Rs. 9000

(b) Rs. 8400

(c) Rs. 7500

(d) Rs. 8000

**Q6. At a certain rate per annum, the simple interest on a sum of money for one year is Rs. 260 and the compound interest on the same sum for two years is Rs. 540.80. The rate of interest per annum is- **

(a) 4%

(b) 6%

(c) 8%

(d) 10%

**Q7. The simple interest and compound interest (compound annually) on a certain sum of money with a given rate for a period of 2 years are Rs. 900 and Rs. 954 respectively. The sum of money is: **

(a) Rs. 3700

(b) Rs. 3650

(c) Rs. 3850

(d) Rs. 3750

**Q8. A certain sum of money amounts to Rs. 2,420 in 2 years and Rs. 2,662 in 3 years at same rate of compound interest, compounded annually. The rate of interest per annum is: **

(a) 6%

(b) 8%

(c) 9%

(d) 10%

**Q9. On a certain sum of money, the difference between the compound interest for a year, payable half-yearly, and the simple interest for a year is Rs. 180. If the rate of interest in both the cases is 10%, then the sum is: **

(a) Rs. 60,000

(b) Rs. 72,000

(c) Rs. 62,000

(d) Rs. 54,000

**Q10. The compound interest on Rs. 30,000 at 7% per annum for a certain time is Rs. 4,347. The time is: **

(a) 3 years

(b) 4 years

(c) 2 years

(d) 2.5 years

**Q11. An amount of money at compound interest grows up to Rs. 3,840 in 4 years and up to Rs. 3,936 in 5 years. Find the rate of interest. **

(a) 2.5%

(b) 2%

(c) 3.5%

(d) 2.05%

**Q12. The time in which Rs. 80,000 amounts to Rs. 92,610 at 10% p.a. compound interest, interest being compound semiannually is: **

(a) 3/2 years

(b) 2 years

(c) 5/2 years

(d) 3 years

**Q13. The compound interest on a certain sum of money at a certain rate per annum for two years is Rs. 2,050, and the simple interest on the same amount of money at the same rate for 3 years is Rs. 3000. Then the sum of money is: **

(a) Rs. 20,000

(b) Rs. 18,000

(c) Rs. 21,000

(d) Rs. 25,000

**Q14. The compound interest on a certain sum of money for 2 years at 5% is Rs. 328, then the sum is: **

(a) Rs. 3000

(b) Rs. 3600

(c) Rs. 3200

(d) Rs. 3400

**Q15. The difference between the compound interest and simple interest on a certain sum for 2 years at 10% per annum is Rs. 300. Find the sum.**

(a) Rs. 31,000

(b) Rs 31,500

(c) Rs. 30,000

(d) Rs. 30,500