Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 550 · 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 ₹3000 earn ₹480 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
2. 2.In how many years will ₹2000 earn ₹280 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
3. 3.What is the simple interest on ₹7500 at 2% per year for 2 years? (a) ₹450 (b) ₹7800 (c) ₹150 (d) ₹300
4. 4.What is the simple interest on ₹8000 at 6% per year for 3 years? (a) ₹1920 (b) ₹9440 (c) ₹480 (d) ₹1440
5. 5.In how many years will ₹4000 earn ₹1440 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
6. 6.The simple interest on ₹4000 for 5 years is ₹2000. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 50%
7. 7.₹2000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2180 (b) ₹2060 (c) ₹2240 (d) ₹180
8. 8.The simple interest on ₹1000 for 3 years is ₹210. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
9. 9.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹3990 (b) ₹490 (c) ₹735 (d) ₹245
10. 10.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹480 (b) ₹2320 (c) ₹160 (d) ₹320
11. 11.What is the simple interest on ₹2500 at 3% per year for 5 years? (a) ₹75 (b) ₹2875 (c) ₹375 (d) ₹450
12. 12.What is the simple interest on ₹8500 at 4% per year for 2 years? (a) ₹1020 (b) ₹680 (c) ₹9180 (d) ₹340
13. 13.₹4500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹5220 (c) ₹5040 (d) ₹4680
14. 14.₹2500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹300 (b) ₹2900 (c) ₹2600 (d) ₹2800
15. 15.In how many years will ₹3000 earn ₹1500 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
16. 16.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹9900 (c) ₹12600 (d) ₹11700
17. 17.What is the simple interest on ₹8500 at 7% per year for 4 years? (a) ₹10880 (b) ₹2975 (c) ₹595 (d) ₹2380
18. 18.In how many years will ₹3500 earn ₹140 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
19. 19.₹7000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹630 (b) ₹7840 (c) ₹7210 (d) ₹7630
20. 20.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
21. 21.The simple interest on ₹3500 for 4 years is ₹700. What is the rate per year? (a) 6% (b) 5% (c) 20% (d) 4%
22. 22.What is the simple interest on ₹4000 at 12% per year for 2 years? (a) ₹1440 (b) ₹960 (c) ₹480 (d) ₹4960
23. 23.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2575 (b) ₹2800 (c) ₹225 (d) ₹2725
24. 24.In how many years will ₹3000 earn ₹810 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
25. 25.The simple interest on ₹3500 for 5 years is ₹1050. What is the rate per year? (a) 7% (b) 5% (c) 30% (d) 6%
26. 26.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹2700 (b) ₹3240 (c) ₹8700 (d) ₹540
27. 27.In how many years will ₹8500 earn ₹2040 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
28. 28.The simple interest on ₹6000 for 2 years is ₹480. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
29. 29.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
30. 30.₹4000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹5440 (b) ₹4480 (c) ₹5920 (d) ₹1440
31. 31.In how many years will ₹2000 earn ₹800 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
32. 32.In how many years will ₹5500 earn ₹550 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
33. 33.₹7500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹9375 (b) ₹1875 (c) ₹7875 (d) ₹9750
34. 34.What is the simple interest on ₹4500 at 11% per year for 4 years? (a) ₹495 (b) ₹1980 (c) ₹2475 (d) ₹6480
35. 35.What is the simple interest on ₹7000 at 9% per year for 5 years? (a) ₹630 (b) ₹3150 (c) ₹10150 (d) ₹3780
36. 36.What is the simple interest on ₹7000 at 6% per year for 5 years? (a) ₹2100 (b) ₹2520 (c) ₹9100 (d) ₹420
37. 37.₹5000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹5400 (b) ₹5800 (c) ₹6200 (d) ₹800
38. 38.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹3360 (b) ₹360 (c) ₹90 (d) ₹450
39. 39.₹4500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹4770 (c) ₹6120 (d) ₹5850
40. 40.The simple interest on ₹8000 for 3 years is ₹1920. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%

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