Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 112 · 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.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2120 (b) ₹120 (c) ₹2040 (d) ₹2160
2. 2.In how many years will ₹1000 earn ₹330 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
3. 3.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹2340 (b) ₹780 (c) ₹8840 (d) ₹3120
4. 4.The simple interest on ₹7500 for 2 years is ₹1650. What is the rate per year? (a) 22% (b) 12% (c) 11% (d) 10%
5. 5.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹240 (b) ₹8480 (c) ₹720 (d) ₹480
6. 6.The simple interest on ₹1000 for 2 years is ₹220. What is the rate per year? (a) 11% (b) 22% (c) 12% (d) 10%
7. 7.In how many years will ₹9000 earn ₹3600 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
8. 8.The simple interest on ₹6000 for 2 years is ₹480. What is the rate per year? (a) 8% (b) 4% (c) 5% (d) 3%
9. 9.In how many years will ₹2000 earn ₹800 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
10. 10.₹10000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹13600 (c) ₹14500 (d) ₹10900
11. 11.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹1500 (b) ₹1200 (c) ₹8700 (d) ₹300
12. 12.In how many years will ₹9500 earn ₹1425 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
13. 13.₹4000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4400 (b) ₹2000 (c) ₹6000 (d) ₹6400
14. 14.The simple interest on ₹5500 for 2 years is ₹440. What is the rate per year? (a) 8% (b) 3% (c) 5% (d) 4%
15. 15.What is the simple interest on ₹5500 at 10% per year for 3 years? (a) ₹7150 (b) ₹550 (c) ₹1650 (d) ₹2200
16. 16.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1360 (b) ₹1240 (c) ₹1120 (d) ₹240
17. 17.The simple interest on ₹2500 for 3 years is ₹825. What is the rate per year? (a) 33% (b) 10% (c) 11% (d) 12%
18. 18.The simple interest on ₹5000 for 4 years is ₹1000. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 20%
19. 19.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹240 (b) ₹3960 (c) ₹960 (d) ₹1200
20. 20.The simple interest on ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 27%
21. 21.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1605 (b) ₹1920 (c) ₹315 (d) ₹1815
22. 22.In how many years will ₹4000 earn ₹720 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
23. 23.₹4500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹5580 (b) ₹1080 (c) ₹4860 (d) ₹5940
24. 24.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹13775 (b) ₹855 (c) ₹4275 (d) ₹5130
25. 25.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 12% (b) 22% (c) 10% (d) 11%
26. 26.The simple interest on ₹1000 for 2 years is ₹60. What is the rate per year? (a) 4% (b) 3% (c) 6% (d) 2%
27. 27.₹5000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹6500 (b) ₹6000 (c) ₹5500 (d) ₹1000
28. 28.In how many years will ₹9500 earn ₹2280 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
29. 29.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹720 (b) ₹120 (c) ₹600 (d) ₹2600
30. 30.The simple interest on ₹3500 for 4 years is ₹700. What is the rate per year? (a) 4% (b) 20% (c) 5% (d) 6%
31. 31.The simple interest on ₹8500 for 2 years is ₹680. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
32. 32.In how many years will ₹8000 earn ₹3840 simple interest at 12% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
33. 33.₹9500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹10260 (b) ₹11780 (c) ₹2280 (d) ₹12540
34. 34.The simple interest on ₹7000 for 5 years is ₹1400. What is the rate per year? (a) 3% (b) 20% (c) 4% (d) 5%
35. 35.₹7500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9075 (b) ₹8550 (c) ₹1050 (d) ₹8025
36. 36.In how many years will ₹1500 earn ₹300 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
37. 37.₹4500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹6300 (b) ₹4860 (c) ₹6660 (d) ₹1800
38. 38.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹2360 (b) ₹180 (c) ₹360 (d) ₹540
39. 39.The simple interest on ₹7000 for 3 years is ₹1050. What is the rate per year? (a) 6% (b) 5% (c) 15% (d) 4%
40. 40.In how many years will ₹7000 earn ₹420 simple interest at 3% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years

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