Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 802 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
2. 2.₹8000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8960 (b) ₹8320 (c) ₹960 (d) ₹9280
3. 3.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1020 (b) ₹10030 (c) ₹9010 (d) ₹9520
4. 4.In how many years will ₹3500 earn ₹210 simple interest at 2% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
5. 5.What is the simple interest on ₹5000 at 5% per year for 4 years? (a) ₹250 (b) ₹1250 (c) ₹1000 (d) ₹6000
6. 6.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹2725 (c) ₹225 (d) ₹2575
7. 7.What is the simple interest on ₹5000 at 4% per year for 5 years? (a) ₹6000 (b) ₹200 (c) ₹1200 (d) ₹1000
8. 8.In how many years will ₹9500 earn ₹1710 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
9. 9.The simple interest on ₹7500 for 5 years is ₹750. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 10%
10. 10.₹5500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹550 (b) ₹5610 (c) ₹6050 (d) ₹6160
11. 11.₹6000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹720 (b) ₹6900 (c) ₹6720 (d) ₹6180
12. 12.₹1500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1680 (b) ₹2220 (c) ₹2400 (d) ₹720
13. 13.₹9000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4320 (b) ₹10080 (c) ₹13320 (d) ₹14400
14. 14.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
15. 15.The simple interest on ₹8000 for 5 years is ₹2400. What is the rate per year? (a) 7% (b) 6% (c) 30% (d) 5%
16. 16.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
17. 17.The simple interest on ₹6000 for 2 years is ₹1320. What is the rate per year? (a) 22% (b) 12% (c) 11% (d) 10%
18. 18.The simple interest on ₹3000 for 3 years is ₹1080. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
19. 19.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹2320 (b) ₹160 (c) ₹320 (d) ₹480
20. 20.The simple interest on ₹6500 for 3 years is ₹1170. What is the rate per year? (a) 7% (b) 18% (c) 5% (d) 6%
21. 21.What is the simple interest on ₹9500 at 2% per year for 4 years? (a) ₹190 (b) ₹10260 (c) ₹950 (d) ₹760
22. 22.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹400 (b) ₹2000 (c) ₹10000 (d) ₹2400
23. 23.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹720 (b) ₹240 (c) ₹6720 (d) ₹960
24. 24.In how many years will ₹2000 earn ₹120 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
25. 25.What is the simple interest on ₹1500 at 9% per year for 2 years? (a) ₹405 (b) ₹135 (c) ₹270 (d) ₹1770
26. 26.₹7500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹8700 (b) ₹1200 (c) ₹9300 (d) ₹8100
27. 27.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
28. 28.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹3825 (b) ₹12325 (c) ₹4590 (d) ₹765
29. 29.In how many years will ₹2000 earn ₹880 simple interest at 11% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
30. 30.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 24% (b) 8% (c) 7% (d) 9%
31. 31.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 4% (b) 3% (c) 8% (d) 5%
32. 32.What is the simple interest on ₹9000 at 8% per year for 3 years? (a) ₹11160 (b) ₹720 (c) ₹2160 (d) ₹2880
33. 33.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹900 (b) ₹8100 (c) ₹300 (d) ₹600
34. 34.What is the simple interest on ₹5500 at 10% per year for 4 years? (a) ₹550 (b) ₹2750 (c) ₹2200 (d) ₹7700
35. 35.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹2900 (b) ₹200 (c) ₹600 (d) ₹400
36. 36.In how many years will ₹1000 earn ₹600 simple interest at 12% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
37. 37.The simple interest on ₹3000 for 4 years is ₹1080. What is the rate per year? (a) 8% (b) 10% (c) 36% (d) 9%
38. 38.The simple interest on ₹7000 for 2 years is ₹280. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 1%
39. 39.₹8000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2560 (b) ₹10560 (c) ₹11200 (d) ₹8640
40. 40.In how many years will ₹8500 earn ₹4675 simple interest at 11% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years

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