Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 648 · 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.₹6000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹6720 (b) ₹2880 (c) ₹9600 (d) ₹8880
2. 2.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 12% (b) 24% (c) 11% (d) 13%
3. 3.₹1500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2040 (b) ₹1680 (c) ₹1860 (d) ₹360
4. 4.₹2000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹2120 (c) ₹2480 (d) ₹2600
5. 5.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹660 (b) ₹330 (c) ₹6160 (d) ₹990
6. 6.The simple interest on ₹9500 for 4 years is ₹760. What is the rate per year? (a) 1% (b) 8% (c) 3% (d) 2%
7. 7.What is the simple interest on ₹10000 at 8% per year for 3 years? (a) ₹800 (b) ₹12400 (c) ₹2400 (d) ₹3200
8. 8.₹3000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3330 (b) ₹1320 (c) ₹4320 (d) ₹4650
9. 9.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 8% (b) 18% (c) 10% (d) 9%
10. 10.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹360 (b) ₹1080 (c) ₹9720 (d) ₹720
11. 11.In how many years will ₹3500 earn ₹840 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
12. 12.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
13. 13.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 3% (b) 6% (c) 1% (d) 2%
14. 14.The simple interest on ₹1000 for 3 years is ₹270. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
15. 15.₹1500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹330 (b) ₹1665 (c) ₹1830 (d) ₹1995
16. 16.What is the simple interest on ₹3000 at 6% per year for 3 years? (a) ₹720 (b) ₹3540 (c) ₹180 (d) ₹540
17. 17.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹480 (b) ₹8480 (c) ₹240 (d) ₹720
18. 18.₹3000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3900 (b) ₹900 (c) ₹3180 (d) ₹4080
19. 19.In how many years will ₹4000 earn ₹640 simple interest at 8% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
20. 20.In how many years will ₹3500 earn ₹945 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
21. 21.The simple interest on ₹3500 for 2 years is ₹630. What is the rate per year? (a) 10% (b) 18% (c) 9% (d) 8%
22. 22.In how many years will ₹2500 earn ₹1100 simple interest at 11% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
23. 23.₹1000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹120 (b) ₹1040 (c) ₹1160 (d) ₹1120
24. 24.In how many years will ₹4000 earn ₹960 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
25. 25.The simple interest on ₹2000 for 4 years is ₹160. What is the rate per year? (a) 1% (b) 2% (c) 8% (d) 3%
26. 26.In how many years will ₹6500 earn ₹260 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
27. 27.The simple interest on ₹8000 for 3 years is ₹2640. What is the rate per year? (a) 10% (b) 33% (c) 11% (d) 12%
28. 28.What is the simple interest on ₹3000 at 11% per year for 5 years? (a) ₹330 (b) ₹1980 (c) ₹4650 (d) ₹1650
29. 29.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹3300 (c) ₹2700 (d) ₹3500
30. 30.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹500 (b) ₹7500 (c) ₹2500 (d) ₹3000
31. 31.In how many years will ₹10000 earn ₹2400 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
32. 32.What is the simple interest on ₹2000 at 2% per year for 5 years? (a) ₹240 (b) ₹200 (c) ₹40 (d) ₹2200
33. 33.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹50 (b) ₹300 (c) ₹250 (d) ₹2750
34. 34.The simple interest on ₹2000 for 4 years is ₹720. What is the rate per year? (a) 10% (b) 36% (c) 9% (d) 8%
35. 35.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 4% (b) 2% (c) 6% (d) 3%
36. 36.What is the simple interest on ₹5000 at 10% per year for 3 years? (a) ₹2000 (b) ₹500 (c) ₹1500 (d) ₹6500
37. 37.What is the simple interest on ₹6000 at 3% per year for 5 years? (a) ₹6900 (b) ₹180 (c) ₹900 (d) ₹1080
38. 38.The simple interest on ₹6000 for 4 years is ₹2400. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 40%
39. 39.What is the simple interest on ₹8500 at 8% per year for 5 years? (a) ₹11900 (b) ₹4080 (c) ₹680 (d) ₹3400
40. 40.The simple interest on ₹3000 for 5 years is ₹300. What is the rate per year? (a) 10% (b) 3% (c) 1% (d) 2%

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