Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 193 · 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 ₹3000 earn ₹900 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
2. 2.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹2600 (b) ₹150 (c) ₹50 (d) ₹100
3. 3.₹6000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹6360 (b) ₹360 (c) ₹6540 (d) ₹6180
4. 4.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 36%
5. 5.The simple interest on ₹3500 for 4 years is ₹1260. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
6. 6.What is the simple interest on ₹1000 at 9% per year for 5 years? (a) ₹450 (b) ₹1450 (c) ₹90 (d) ₹540
7. 7.In how many years will ₹3000 earn ₹1050 simple interest at 7% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
8. 8.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹100 (b) ₹1100 (c) ₹1120 (d) ₹1020
9. 9.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 7% (b) 8% (c) 21% (d) 6%
10. 10.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 9%
11. 11.In how many years will ₹4000 earn ₹960 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
12. 12.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹4200 (b) ₹840 (c) ₹3360 (d) ₹10360
13. 13.In how many years will ₹7500 earn ₹2250 simple interest at 6% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
14. 14.₹9500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9785 (b) ₹10640 (c) ₹855 (d) ₹10355
15. 15.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹350 (b) ₹4200 (c) ₹1050 (d) ₹700
16. 16.What is the simple interest on ₹2500 at 12% per year for 5 years? (a) ₹1800 (b) ₹4000 (c) ₹300 (d) ₹1500
17. 17.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 1%
18. 18.₹8000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2640 (b) ₹10640 (c) ₹11520 (d) ₹8880
19. 19.What is the simple interest on ₹2000 at 3% per year for 3 years? (a) ₹180 (b) ₹2180 (c) ₹60 (d) ₹240
20. 20.What is the simple interest on ₹8500 at 7% per year for 2 years? (a) ₹9690 (b) ₹595 (c) ₹1785 (d) ₹1190
21. 21.What is the simple interest on ₹7000 at 6% per year for 4 years? (a) ₹1680 (b) ₹2100 (c) ₹420 (d) ₹8680
22. 22.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹720 (b) ₹9720 (c) ₹9900 (d) ₹9180
23. 23.₹6000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7800 (b) ₹1500 (c) ₹6300 (d) ₹7500
24. 24.In how many years will ₹1000 earn ₹120 simple interest at 4% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
25. 25.In how many years will ₹1000 earn ₹480 simple interest at 12% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
26. 26.The simple interest on ₹7000 for 4 years is ₹1120. What is the rate per year? (a) 16% (b) 5% (c) 4% (d) 3%
27. 27.The simple interest on ₹4000 for 3 years is ₹1440. What is the rate per year? (a) 12% (b) 36% (c) 11% (d) 13%
28. 28.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 9%
29. 29.In how many years will ₹8000 earn ₹2560 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
30. 30.₹3500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3850 (b) ₹4550 (c) ₹4200 (d) ₹700
31. 31.The simple interest on ₹3500 for 5 years is ₹1925. What is the rate per year? (a) 12% (b) 55% (c) 11% (d) 10%
32. 32.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹3815 (b) ₹420 (c) ₹105 (d) ₹315
33. 33.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 8%
34. 34.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹9900 (b) ₹11700 (c) ₹12600 (d) ₹2700
35. 35.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹9360 (c) ₹9540 (d) ₹9180
36. 36.What is the simple interest on ₹10000 at 5% per year for 3 years? (a) ₹2000 (b) ₹1500 (c) ₹500 (d) ₹11500
37. 37.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹1140 (b) ₹15200 (c) ₹6840 (d) ₹5700
38. 38.₹5500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1100 (b) ₹6600 (c) ₹5720 (d) ₹6820
39. 39.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹720 (b) ₹5220 (c) ₹180 (d) ₹900
40. 40.What is the simple interest on ₹10000 at 10% per year for 3 years? (a) ₹4000 (b) ₹3000 (c) ₹13000 (d) ₹1000

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