Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 431 · 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 ₹2000 earn ₹660 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
2. 2.In how many years will ₹5500 earn ₹770 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
3. 3.₹1000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹250 (b) ₹1050 (c) ₹1250 (d) ₹1300
4. 4.What is the simple interest on ₹3000 at 6% per year for 3 years? (a) ₹3540 (b) ₹720 (c) ₹540 (d) ₹180
5. 5.In how many years will ₹2500 earn ₹1125 simple interest at 9% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
6. 6.In how many years will ₹5000 earn ₹300 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
7. 7.₹5500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1320 (b) ₹5830 (c) ₹7150 (d) ₹6820
8. 8.In how many years will ₹7000 earn ₹2800 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
9. 9.The simple interest on ₹4500 for 3 years is ₹1620. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 36%
10. 10.What is the simple interest on ₹10000 at 4% per year for 3 years? (a) ₹1200 (b) ₹1600 (c) ₹400 (d) ₹11200
11. 11.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 9% (b) 11% (c) 20% (d) 10%
12. 12.What is the simple interest on ₹1000 at 7% per year for 5 years? (a) ₹70 (b) ₹350 (c) ₹420 (d) ₹1350
13. 13.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹500 (b) ₹750 (c) ₹250 (d) ₹3000
14. 14.In how many years will ₹6500 earn ₹2145 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
15. 15.What is the simple interest on ₹7000 at 10% per year for 4 years? (a) ₹3500 (b) ₹9800 (c) ₹2800 (d) ₹700
16. 16.In how many years will ₹10000 earn ₹2100 simple interest at 7% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
17. 17.₹8500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8755 (b) ₹9265 (c) ₹9010 (d) ₹510
18. 18.₹7500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹10500 (b) ₹2400 (c) ₹9900 (d) ₹8100
19. 19.In how many years will ₹5000 earn ₹1250 simple interest at 5% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
20. 20.The simple interest on ₹2500 for 3 years is ₹150. What is the rate per year? (a) 6% (b) 1% (c) 2% (d) 3%
21. 21.In how many years will ₹5500 earn ₹660 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
22. 22.₹7000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7350 (b) ₹8750 (c) ₹9100 (d) ₹1750
23. 23.The simple interest on ₹7000 for 3 years is ₹1680. What is the rate per year? (a) 7% (b) 24% (c) 8% (d) 9%
24. 24.What is the simple interest on ₹9000 at 3% per year for 4 years? (a) ₹270 (b) ₹1080 (c) ₹1350 (d) ₹10080
25. 25.₹3000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3360 (b) ₹240 (c) ₹3240 (d) ₹3120
26. 26.What is the simple interest on ₹5500 at 4% per year for 5 years? (a) ₹1100 (b) ₹6600 (c) ₹1320 (d) ₹220
27. 27.₹6000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹7920 (b) ₹6480 (c) ₹8400 (d) ₹1920
28. 28.What is the simple interest on ₹3500 at 2% per year for 5 years? (a) ₹70 (b) ₹350 (c) ₹3850 (d) ₹420
29. 29.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹8100 (b) ₹300 (c) ₹600 (d) ₹900
30. 30.The simple interest on ₹2000 for 5 years is ₹200. What is the rate per year? (a) 10% (b) 3% (c) 1% (d) 2%
31. 31.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 10% (b) 3% (c) 2% (d) 1%
32. 32.What is the simple interest on ₹2000 at 9% per year for 3 years? (a) ₹180 (b) ₹2540 (c) ₹720 (d) ₹540
33. 33.₹8500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹11305 (b) ₹9435 (c) ₹10370 (d) ₹1870
34. 34.The simple interest on ₹7500 for 2 years is ₹1350. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
35. 35.The simple interest on ₹1500 for 4 years is ₹660. What is the rate per year? (a) 12% (b) 44% (c) 10% (d) 11%
36. 36.₹3500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹4060 (b) ₹4340 (c) ₹560 (d) ₹3780
37. 37.The simple interest on ₹8500 for 4 years is ₹680. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
38. 38.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 9% (b) 10% (c) 36% (d) 8%
39. 39.What is the simple interest on ₹3500 at 7% per year for 3 years? (a) ₹735 (b) ₹245 (c) ₹980 (d) ₹4235
40. 40.What is the simple interest on ₹1000 at 9% per year for 4 years? (a) ₹360 (b) ₹90 (c) ₹450 (d) ₹1360

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