Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 430 · 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.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹15480 (b) ₹10080 (c) ₹14400 (d) ₹5400
2. 2.₹10000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹10500 (b) ₹2500 (c) ₹12500 (d) ₹13000
3. 3.₹9500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹16340 (b) ₹5700 (c) ₹10640 (d) ₹15200
4. 4.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3700 (b) ₹1000 (c) ₹3500 (d) ₹2700
5. 5.The simple interest on ₹9000 for 3 years is ₹1620. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 18%
6. 6.In how many years will ₹1000 earn ₹300 simple interest at 6% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
7. 7.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
8. 8.The simple interest on ₹9500 for 3 years is ₹2850. What is the rate per year? (a) 30% (b) 9% (c) 11% (d) 10%
9. 9.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
10. 10.The simple interest on ₹8000 for 2 years is ₹1600. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
11. 11.In how many years will ₹4000 earn ₹480 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
12. 12.In how many years will ₹4000 earn ₹800 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
13. 13.The simple interest on ₹1500 for 2 years is ₹270. What is the rate per year? (a) 9% (b) 18% (c) 8% (d) 10%
14. 14.In how many years will ₹2000 earn ₹880 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
15. 15.The simple interest on ₹3000 for 3 years is ₹180. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 6%
16. 16.What is the simple interest on ₹7500 at 11% per year for 2 years? (a) ₹2475 (b) ₹825 (c) ₹9150 (d) ₹1650
17. 17.₹8000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹9440 (b) ₹8480 (c) ₹9920 (d) ₹1440
18. 18.In how many years will ₹2000 earn ₹480 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
19. 19.The simple interest on ₹3000 for 2 years is ₹420. What is the rate per year? (a) 6% (b) 7% (c) 14% (d) 8%
20. 20.What is the simple interest on ₹5500 at 9% per year for 3 years? (a) ₹6985 (b) ₹495 (c) ₹1485 (d) ₹1980
21. 21.What is the simple interest on ₹3500 at 4% per year for 4 years? (a) ₹4060 (b) ₹140 (c) ₹700 (d) ₹560
22. 22.The simple interest on ₹9000 for 3 years is ₹1350. What is the rate per year? (a) 5% (b) 4% (c) 15% (d) 6%
23. 23.In how many years will ₹4500 earn ₹2250 simple interest at 10% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
24. 24.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
25. 25.₹9000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2160 (b) ₹9720 (c) ₹11160 (d) ₹11880
26. 26.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
27. 27.What is the simple interest on ₹5500 at 5% per year for 2 years? (a) ₹275 (b) ₹550 (c) ₹6050 (d) ₹825
28. 28.In how many years will ₹5500 earn ₹330 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
29. 29.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹1060 (b) ₹90 (c) ₹30 (d) ₹60
30. 30.What is the simple interest on ₹4500 at 6% per year for 2 years? (a) ₹270 (b) ₹810 (c) ₹5040 (d) ₹540
31. 31.₹6500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2600 (b) ₹9620 (c) ₹7020 (d) ₹9100
32. 32.The simple interest on ₹8000 for 2 years is ₹480. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
33. 33.In how many years will ₹1500 earn ₹900 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
34. 34.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹3710 (b) ₹315 (c) ₹210 (d) ₹105
35. 35.In how many years will ₹2500 earn ₹600 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
36. 36.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9900 (b) ₹9720 (c) ₹720 (d) ₹9180
37. 37.What is the simple interest on ₹9000 at 8% per year for 5 years? (a) ₹12600 (b) ₹3600 (c) ₹4320 (d) ₹720
38. 38.In how many years will ₹1000 earn ₹330 simple interest at 11% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
39. 39.What is the simple interest on ₹1500 at 9% per year for 3 years? (a) ₹135 (b) ₹1905 (c) ₹405 (d) ₹540
40. 40.The simple interest on ₹3500 for 2 years is ₹280. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 8%

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