Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 266 · 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 ₹1500 earn ₹210 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
2. 2.In how many years will ₹9000 earn ₹2700 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
3. 3.The simple interest on ₹3500 for 4 years is ₹1120. What is the rate per year? (a) 7% (b) 32% (c) 9% (d) 8%
4. 4.₹5000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹5400 (b) ₹800 (c) ₹5800 (d) ₹6200
5. 5.The simple interest on ₹9000 for 4 years is ₹2520. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 28%
6. 6.₹3500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹1540 (b) ₹3885 (c) ₹5040 (d) ₹5425
7. 7.What is the simple interest on ₹9500 at 3% per year for 3 years? (a) ₹855 (b) ₹1140 (c) ₹285 (d) ₹10355
8. 8.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
9. 9.The simple interest on ₹6000 for 2 years is ₹960. What is the rate per year? (a) 9% (b) 16% (c) 7% (d) 8%
10. 10.The simple interest on ₹1500 for 5 years is ₹150. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 10%
11. 11.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 1% (b) 3% (c) 4% (d) 2%
12. 12.In how many years will ₹9000 earn ₹3150 simple interest at 7% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
13. 13.What is the simple interest on ₹4000 at 3% per year for 4 years? (a) ₹480 (b) ₹4480 (c) ₹600 (d) ₹120
14. 14.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1240 (b) ₹1080 (c) ₹160 (d) ₹1160
15. 15.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
16. 16.What is the simple interest on ₹9500 at 4% per year for 4 years? (a) ₹1900 (b) ₹11020 (c) ₹380 (d) ₹1520
17. 17.₹3500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3710 (b) ₹1050 (c) ₹4550 (d) ₹4760
18. 18.₹10000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12700 (b) ₹2700 (c) ₹13600 (d) ₹10900
19. 19.In how many years will ₹3500 earn ₹630 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
20. 20.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 12% (b) 4% (c) 2% (d) 3%
21. 21.The simple interest on ₹6000 for 2 years is ₹720. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
22. 22.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
23. 23.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹960 (b) ₹800 (c) ₹160 (d) ₹8800
24. 24.In how many years will ₹7000 earn ₹1680 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
25. 25.What is the simple interest on ₹5000 at 7% per year for 2 years? (a) ₹700 (b) ₹1050 (c) ₹350 (d) ₹5700
26. 26.₹5500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹6600 (b) ₹5720 (c) ₹6380 (d) ₹880
27. 27.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 21% (b) 6% (c) 8% (d) 7%
28. 28.What is the simple interest on ₹1500 at 6% per year for 5 years? (a) ₹1950 (b) ₹450 (c) ₹90 (d) ₹540
29. 29.The simple interest on ₹9000 for 5 years is ₹2700. What is the rate per year? (a) 5% (b) 7% (c) 30% (d) 6%
30. 30.What is the simple interest on ₹3000 at 3% per year for 5 years? (a) ₹540 (b) ₹3450 (c) ₹450 (d) ₹90
31. 31.What is the simple interest on ₹5500 at 4% per year for 4 years? (a) ₹1100 (b) ₹880 (c) ₹6380 (d) ₹220
32. 32.The simple interest on ₹8000 for 4 years is ₹2560. What is the rate per year? (a) 9% (b) 32% (c) 8% (d) 7%
33. 33.₹4000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹320 (b) ₹4160 (c) ₹4320 (d) ₹4480
34. 34.What is the simple interest on ₹7000 at 2% per year for 5 years? (a) ₹7700 (b) ₹140 (c) ₹700 (d) ₹840
35. 35.What is the simple interest on ₹4500 at 9% per year for 3 years? (a) ₹405 (b) ₹5715 (c) ₹1620 (d) ₹1215
36. 36.What is the simple interest on ₹7000 at 5% per year for 3 years? (a) ₹1400 (b) ₹8050 (c) ₹350 (d) ₹1050
37. 37.What is the simple interest on ₹1000 at 10% per year for 4 years? (a) ₹1400 (b) ₹500 (c) ₹400 (d) ₹100
38. 38.What is the simple interest on ₹4500 at 6% per year for 4 years? (a) ₹5580 (b) ₹270 (c) ₹1350 (d) ₹1080
39. 39.The simple interest on ₹3500 for 2 years is ₹350. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 10%
40. 40.The simple interest on ₹5000 for 4 years is ₹400. What is the rate per year? (a) 2% (b) 3% (c) 8% (d) 1%

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