Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 640 · 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 6% per year simple interest. What is the amount after 3 years? (a) ₹11160 (b) ₹9540 (c) ₹10620 (d) ₹1620
2. 2.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3175 (b) ₹3400 (c) ₹675 (d) ₹2725
3. 3.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 5% (c) 15% (d) 4%
4. 4.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
5. 5.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹630 (b) ₹420 (c) ₹210 (d) ₹7420
6. 6.₹9000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹11970 (b) ₹10980 (c) ₹1980 (d) ₹9990
7. 7.What is the simple interest on ₹4500 at 8% per year for 2 years? (a) ₹1080 (b) ₹360 (c) ₹720 (d) ₹5220
8. 8.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹440 (b) ₹220 (c) ₹660 (d) ₹2440
9. 9.The simple interest on ₹9000 for 4 years is ₹1080. What is the rate per year? (a) 12% (b) 4% (c) 3% (d) 2%
10. 10.In how many years will ₹6000 earn ₹1080 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
11. 11.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 24% (b) 12% (c) 13% (d) 11%
12. 12.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 4%
13. 13.₹8000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8800 (b) ₹12800 (c) ₹12000 (d) ₹4000
14. 14.In how many years will ₹8500 earn ₹1360 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
15. 15.What is the simple interest on ₹5000 at 10% per year for 3 years? (a) ₹500 (b) ₹1500 (c) ₹6500 (d) ₹2000
16. 16.₹7000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹10360 (b) ₹7840 (c) ₹11200 (d) ₹3360
17. 17.What is the simple interest on ₹7500 at 11% per year for 3 years? (a) ₹9975 (b) ₹2475 (c) ₹3300 (d) ₹825
18. 18.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹330 (b) ₹6160 (c) ₹990 (d) ₹660
19. 19.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 5% (b) 6% (c) 20% (d) 4%
20. 20.The simple interest on ₹1500 for 3 years is ₹450. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
21. 21.In how many years will ₹2000 earn ₹800 simple interest at 10% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
22. 22.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7800 (b) ₹1200 (c) ₹8700 (d) ₹9000
23. 23.What is the simple interest on ₹4000 at 7% per year for 3 years? (a) ₹840 (b) ₹1120 (c) ₹4840 (d) ₹280
24. 24.What is the simple interest on ₹8000 at 4% per year for 5 years? (a) ₹9600 (b) ₹1920 (c) ₹320 (d) ₹1600
25. 25.What is the simple interest on ₹2500 at 6% per year for 2 years? (a) ₹450 (b) ₹2800 (c) ₹300 (d) ₹150
26. 26.₹2000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹2200 (b) ₹160 (c) ₹2160 (d) ₹2040
27. 27.What is the simple interest on ₹8000 at 5% per year for 4 years? (a) ₹1600 (b) ₹400 (c) ₹9600 (d) ₹2000
28. 28.The simple interest on ₹9000 for 2 years is ₹360. What is the rate per year? (a) 2% (b) 4% (c) 1% (d) 3%
29. 29.In how many years will ₹9000 earn ₹1080 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
30. 30.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1920 (b) ₹1815 (c) ₹315 (d) ₹1605
31. 31.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹2400 (b) ₹400 (c) ₹100 (d) ₹500
32. 32.The simple interest on ₹3500 for 2 years is ₹630. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 18%
33. 33.What is the simple interest on ₹1000 at 12% per year for 2 years? (a) ₹1240 (b) ₹360 (c) ₹240 (d) ₹120
34. 34.What is the simple interest on ₹2500 at 11% per year for 4 years? (a) ₹275 (b) ₹1100 (c) ₹3600 (d) ₹1375
35. 35.₹7000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹11200 (b) ₹7840 (c) ₹12040 (d) ₹4200
36. 36.The simple interest on ₹10000 for 5 years is ₹4000. What is the rate per year? (a) 40% (b) 8% (c) 9% (d) 7%
37. 37.₹9500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹10450 (b) ₹1900 (c) ₹12350 (d) ₹11400
38. 38.In how many years will ₹8000 earn ₹3600 simple interest at 9% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
39. 39.In how many years will ₹4500 earn ₹1800 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
40. 40.The simple interest on ₹3000 for 3 years is ₹180. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%

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