Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 585 · 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.₹4000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹4320 (c) ₹5600 (d) ₹5280
2. 2.The simple interest on ₹3000 for 5 years is ₹1350. What is the rate per year? (a) 8% (b) 45% (c) 9% (d) 10%
3. 3.₹2500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2750 (b) ₹3250 (c) ₹750 (d) ₹3500
4. 4.What is the simple interest on ₹2500 at 5% per year for 2 years? (a) ₹375 (b) ₹250 (c) ₹125 (d) ₹2750
5. 5.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10080 (b) ₹12240 (c) ₹11160 (d) ₹2160
6. 6.What is the simple interest on ₹3500 at 12% per year for 5 years? (a) ₹5600 (b) ₹2100 (c) ₹420 (d) ₹2520
7. 7.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10165 (b) ₹10830 (c) ₹11495 (d) ₹1330
8. 8.What is the simple interest on ₹9000 at 6% per year for 3 years? (a) ₹2160 (b) ₹540 (c) ₹1620 (d) ₹10620
9. 9.In how many years will ₹7000 earn ₹2100 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
10. 10.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹810 (b) ₹270 (c) ₹9540 (d) ₹540
11. 11.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
12. 12.The simple interest on ₹2000 for 3 years is ₹540. What is the rate per year? (a) 8% (b) 10% (c) 27% (d) 9%
13. 13.What is the simple interest on ₹4000 at 11% per year for 2 years? (a) ₹4880 (b) ₹1320 (c) ₹440 (d) ₹880
14. 14.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 4% (b) 3% (c) 1% (d) 2%
15. 15.The simple interest on ₹7500 for 3 years is ₹2475. What is the rate per year? (a) 10% (b) 33% (c) 12% (d) 11%
16. 16.₹5000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹6200 (b) ₹1200 (c) ₹5300 (d) ₹6500
17. 17.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹105 (b) ₹3710 (c) ₹210 (d) ₹315
18. 18.What is the simple interest on ₹3000 at 4% per year for 5 years? (a) ₹3600 (b) ₹120 (c) ₹600 (d) ₹720
19. 19.In how many years will ₹6500 earn ₹2925 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
20. 20.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹630 (b) ₹4445 (c) ₹4130 (d) ₹3815
21. 21.The simple interest on ₹5500 for 5 years is ₹2200. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 40%
22. 22.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 4%
23. 23.What is the simple interest on ₹7000 at 10% per year for 2 years? (a) ₹700 (b) ₹2100 (c) ₹1400 (d) ₹8400
24. 24.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
25. 25.The simple interest on ₹4500 for 4 years is ₹1800. What is the rate per year? (a) 9% (b) 40% (c) 11% (d) 10%
26. 26.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹600 (b) ₹3480 (c) ₹120 (d) ₹480
27. 27.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
28. 28.In how many years will ₹7500 earn ₹2400 simple interest at 8% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
29. 29.The simple interest on ₹5500 for 2 years is ₹1210. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
30. 30.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
31. 31.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹10600 (b) ₹600 (c) ₹900 (d) ₹300
32. 32.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
33. 33.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
34. 34.₹2500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹3750 (b) ₹2750 (c) ₹4000 (d) ₹1250
35. 35.The simple interest on ₹1000 for 5 years is ₹400. What is the rate per year? (a) 40% (b) 9% (c) 7% (d) 8%
36. 36.The simple interest on ₹6000 for 3 years is ₹360. What is the rate per year? (a) 2% (b) 1% (c) 6% (d) 3%
37. 37.In how many years will ₹7500 earn ₹1800 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
38. 38.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 8% (b) 3% (c) 4% (d) 5%
39. 39.₹2000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2240 (b) ₹240 (c) ₹2060 (d) ₹2300
40. 40.The simple interest on ₹9000 for 5 years is ₹2250. What is the rate per year? (a) 6% (b) 25% (c) 5% (d) 4%

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