Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 589 · 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 ₹3500 earn ₹1680 simple interest at 12% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
2. 2.What is the simple interest on ₹4000 at 9% per year for 2 years? (a) ₹720 (b) ₹1080 (c) ₹4720 (d) ₹360
3. 3.The simple interest on ₹8500 for 2 years is ₹1020. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
4. 4.What is the simple interest on ₹4500 at 11% per year for 2 years? (a) ₹495 (b) ₹5490 (c) ₹990 (d) ₹1485
5. 5.The simple interest on ₹4000 for 5 years is ₹1800. What is the rate per year? (a) 45% (b) 10% (c) 8% (d) 9%
6. 6.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹3625 (b) ₹225 (c) ₹1350 (d) ₹1125
7. 7.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹450 (b) ₹4950 (c) ₹90 (d) ₹540
8. 8.₹7000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8050 (b) ₹8260 (c) ₹1050 (d) ₹7210
9. 9.₹1000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹1020 (b) ₹60 (c) ₹1080 (d) ₹1060
10. 10.What is the simple interest on ₹6000 at 4% per year for 2 years? (a) ₹240 (b) ₹720 (c) ₹480 (d) ₹6480
11. 11.₹3500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹420 (b) ₹3605 (c) ₹4025 (d) ₹3920
12. 12.In how many years will ₹5500 earn ₹880 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
13. 13.In how many years will ₹3000 earn ₹840 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
14. 14.₹10000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹10200 (c) ₹11000 (d) ₹10800
15. 15.The simple interest on ₹9500 for 4 years is ₹2280. What is the rate per year? (a) 7% (b) 5% (c) 24% (d) 6%
16. 16.The simple interest on ₹4500 for 2 years is ₹270. What is the rate per year? (a) 2% (b) 6% (c) 3% (d) 4%
17. 17.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 3% (b) 4% (c) 6% (d) 2%
18. 18.In how many years will ₹4000 earn ₹1280 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
19. 19.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹4590 (b) ₹765 (c) ₹3825 (d) ₹12325
20. 20.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 20%
21. 21.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7280 (b) ₹8120 (c) ₹1120 (d) ₹8400
22. 22.What is the simple interest on ₹6000 at 10% per year for 2 years? (a) ₹600 (b) ₹1800 (c) ₹1200 (d) ₹7200
23. 23.The simple interest on ₹4000 for 5 years is ₹2400. What is the rate per year? (a) 60% (b) 11% (c) 12% (d) 13%
24. 24.₹7500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹7800 (b) ₹7650 (c) ₹7950 (d) ₹300
25. 25.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹5120 (b) ₹280 (c) ₹1120 (d) ₹1400
26. 26.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 6% (c) 5% (d) 4%
27. 27.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
28. 28.In how many years will ₹2500 earn ₹750 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
29. 29.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹360 (b) ₹120 (c) ₹240 (d) ₹6240
30. 30.The simple interest on ₹7500 for 2 years is ₹900. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
31. 31.₹6500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹7475 (b) ₹7280 (c) ₹780 (d) ₹6695
32. 32.What is the simple interest on ₹1500 at 5% per year for 5 years? (a) ₹450 (b) ₹375 (c) ₹75 (d) ₹1875
33. 33.What is the simple interest on ₹5500 at 5% per year for 3 years? (a) ₹6325 (b) ₹1100 (c) ₹825 (d) ₹275
34. 34.The simple interest on ₹7000 for 4 years is ₹1120. What is the rate per year? (a) 5% (b) 16% (c) 3% (d) 4%
35. 35.The simple interest on ₹8500 for 5 years is ₹1700. What is the rate per year? (a) 5% (b) 20% (c) 3% (d) 4%
36. 36.The simple interest on ₹5500 for 3 years is ₹1815. What is the rate per year? (a) 12% (b) 11% (c) 33% (d) 10%
37. 37.₹6500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7150 (b) ₹9750 (c) ₹3250 (d) ₹10400
38. 38.In how many years will ₹4500 earn ₹1350 simple interest at 6% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
39. 39.In how many years will ₹5000 earn ₹750 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
40. 40.The simple interest on ₹3500 for 4 years is ₹1680. What is the rate per year? (a) 48% (b) 13% (c) 11% (d) 12%

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