Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 679 · 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.What is the simple interest on ₹7500 at 2% per year for 3 years? (a) ₹150 (b) ₹7950 (c) ₹600 (d) ₹450
2. 2.In how many years will ₹1000 earn ₹180 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
3. 3.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
4. 4.In how many years will ₹2000 earn ₹660 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
5. 5.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹720 (b) ₹2720 (c) ₹180 (d) ₹900
6. 6.What is the simple interest on ₹2000 at 3% per year for 5 years? (a) ₹360 (b) ₹2300 (c) ₹60 (d) ₹300
7. 7.₹10000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹10700 (b) ₹12800 (c) ₹2100 (d) ₹12100
8. 8.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
9. 9.The simple interest on ₹1500 for 2 years is ₹270. What is the rate per year? (a) 8% (b) 18% (c) 9% (d) 10%
10. 10.What is the simple interest on ₹1000 at 7% per year for 2 years? (a) ₹140 (b) ₹70 (c) ₹1140 (d) ₹210
11. 11.What is the simple interest on ₹2500 at 4% per year for 5 years? (a) ₹3000 (b) ₹600 (c) ₹500 (d) ₹100
12. 12.In how many years will ₹7500 earn ₹1350 simple interest at 6% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
13. 13.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹3120 (b) ₹2600 (c) ₹520 (d) ₹9100
14. 14.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹11495 (b) ₹1995 (c) ₹665 (d) ₹2660
15. 15.₹6000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹8520 (b) ₹2100 (c) ₹8100 (d) ₹6420
16. 16.The simple interest on ₹5500 for 5 years is ₹2200. What is the rate per year? (a) 40% (b) 7% (c) 8% (d) 9%
17. 17.The simple interest on ₹7000 for 4 years is ₹3360. What is the rate per year? (a) 48% (b) 13% (c) 12% (d) 11%
18. 18.The simple interest on ₹4500 for 5 years is ₹900. What is the rate per year? (a) 5% (b) 20% (c) 3% (d) 4%
19. 19.The simple interest on ₹6000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
20. 20.₹4500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1620 (b) ₹6525 (c) ₹6120 (d) ₹4905
21. 21.In how many years will ₹10000 earn ₹1200 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
22. 22.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹6890 (b) ₹780 (c) ₹7280 (d) ₹7670
23. 23.What is the simple interest on ₹4000 at 5% per year for 3 years? (a) ₹600 (b) ₹4600 (c) ₹800 (d) ₹200
24. 24.The simple interest on ₹9000 for 4 years is ₹3240. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
25. 25.In how many years will ₹9000 earn ₹1080 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
26. 26.In how many years will ₹1000 earn ₹60 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
27. 27.₹2500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹375 (b) ₹2875 (c) ₹2625 (d) ₹3000
28. 28.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹120 (b) ₹1620 (c) ₹60 (d) ₹180
29. 29.What is the simple interest on ₹8500 at 4% per year for 2 years? (a) ₹680 (b) ₹1020 (c) ₹9180 (d) ₹340
30. 30.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3920 (b) ₹3815 (c) ₹315 (d) ₹3605
31. 31.In how many years will ₹2500 earn ₹825 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
32. 32.What is the simple interest on ₹3500 at 9% per year for 3 years? (a) ₹1260 (b) ₹945 (c) ₹315 (d) ₹4445
33. 33.The simple interest on ₹5000 for 4 years is ₹1200. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
34. 34.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1030 (b) ₹120 (c) ₹1120 (d) ₹1150
35. 35.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹3920 (b) ₹210 (c) ₹420 (d) ₹630
36. 36.What is the simple interest on ₹9000 at 6% per year for 3 years? (a) ₹2160 (b) ₹540 (c) ₹10620 (d) ₹1620
37. 37.₹5000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1350 (b) ₹5450 (c) ₹6350 (d) ₹6800
38. 38.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
39. 39.In how many years will ₹4500 earn ₹1800 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
40. 40.What is the simple interest on ₹3000 at 2% per year for 5 years? (a) ₹360 (b) ₹300 (c) ₹3300 (d) ₹60

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