Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 397 · 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.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1120 (b) ₹1240 (c) ₹240 (d) ₹1360
2. 2.In how many years will ₹2500 earn ₹300 simple interest at 6% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
3. 3.In how many years will ₹2500 earn ₹900 simple interest at 12% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
4. 4.₹9000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9720 (b) ₹2880 (c) ₹11880 (d) ₹12600
5. 5.₹3000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹3810 (c) ₹3540 (d) ₹540
6. 6.₹1500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1740 (b) ₹1800 (c) ₹1560 (d) ₹240
7. 7.₹1500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1665 (b) ₹2160 (c) ₹495 (d) ₹1995
8. 8.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
9. 9.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹9540 (b) ₹540 (c) ₹720 (d) ₹180
10. 10.What is the simple interest on ₹7500 at 8% per year for 3 years? (a) ₹2400 (b) ₹9300 (c) ₹600 (d) ₹1800
11. 11.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 4% (b) 3% (c) 15% (d) 2%
12. 12.In how many years will ₹4000 earn ₹720 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
13. 13.What is the simple interest on ₹5500 at 3% per year for 2 years? (a) ₹5830 (b) ₹165 (c) ₹495 (d) ₹330
14. 14.The simple interest on ₹4000 for 2 years is ₹240. What is the rate per year? (a) 6% (b) 4% (c) 2% (d) 3%
15. 15.The simple interest on ₹5000 for 2 years is ₹200. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 1%
16. 16.In how many years will ₹4000 earn ₹2000 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
17. 17.The simple interest on ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 27%
18. 18.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹2080 (b) ₹80 (c) ₹40 (d) ₹120
19. 19.The simple interest on ₹10000 for 4 years is ₹4000. What is the rate per year? (a) 40% (b) 10% (c) 11% (d) 9%
20. 20.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹1540 (b) ₹1155 (c) ₹6655 (d) ₹385
21. 21.The simple interest on ₹10000 for 2 years is ₹800. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
22. 22.₹4000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5000 (b) ₹1000 (c) ₹5200 (d) ₹4200
23. 23.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹990 (b) ₹330 (c) ₹660 (d) ₹6160
24. 24.The simple interest on ₹4000 for 5 years is ₹2000. What is the rate per year? (a) 10% (b) 9% (c) 11% (d) 50%
25. 25.The simple interest on ₹9500 for 4 years is ₹2280. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
26. 26.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹8680 (b) ₹2520 (c) ₹840 (d) ₹1680
27. 27.What is the simple interest on ₹5000 at 5% per year for 3 years? (a) ₹750 (b) ₹1000 (c) ₹250 (d) ₹5750
28. 28.What is the simple interest on ₹1000 at 7% per year for 2 years? (a) ₹210 (b) ₹70 (c) ₹1140 (d) ₹140
29. 29.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10880 (b) ₹8720 (c) ₹2160 (d) ₹10160
30. 30.What is the simple interest on ₹2500 at 3% per year for 3 years? (a) ₹75 (b) ₹300 (c) ₹225 (d) ₹2725
31. 31.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹8880 (b) ₹720 (c) ₹3600 (d) ₹2880
32. 32.What is the simple interest on ₹4000 at 12% per year for 4 years? (a) ₹5920 (b) ₹1920 (c) ₹480 (d) ₹2400
33. 33.The simple interest on ₹3500 for 4 years is ₹420. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 2%
34. 34.In how many years will ₹8000 earn ₹320 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
35. 35.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹630 (b) ₹210 (c) ₹420 (d) ₹3920
36. 36.In how many years will ₹5500 earn ₹825 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
37. 37.In how many years will ₹1500 earn ₹150 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
38. 38.In how many years will ₹3000 earn ₹1050 simple interest at 7% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
39. 39.The simple interest on ₹1000 for 3 years is ₹60. What is the rate per year? (a) 6% (b) 3% (c) 1% (d) 2%
40. 40.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 36%

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