Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 388 · 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.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹120 (b) ₹600 (c) ₹480 (d) ₹3480
2. 2.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹240 (b) ₹60 (c) ₹180 (d) ₹1680
3. 3.In how many years will ₹3500 earn ₹1575 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
4. 4.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹7800 (b) ₹1560 (c) ₹260 (d) ₹1300
5. 5.The simple interest on ₹6000 for 3 years is ₹720. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
6. 6.In how many years will ₹8000 earn ₹1200 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
7. 7.The simple interest on ₹2000 for 5 years is ₹600. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 30%
8. 8.What is the simple interest on ₹1500 at 4% per year for 5 years? (a) ₹1800 (b) ₹360 (c) ₹60 (d) ₹300
9. 9.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
10. 10.The simple interest on ₹1500 for 4 years is ₹420. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 28%
11. 11.The simple interest on ₹8500 for 4 years is ₹1360. What is the rate per year? (a) 3% (b) 5% (c) 16% (d) 4%
12. 12.In how many years will ₹10000 earn ₹800 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
13. 13.What is the simple interest on ₹8000 at 9% per year for 4 years? (a) ₹10880 (b) ₹720 (c) ₹2880 (d) ₹3600
14. 14.The simple interest on ₹9500 for 5 years is ₹950. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
15. 15.In how many years will ₹10000 earn ₹1200 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
16. 16.The simple interest on ₹3000 for 4 years is ₹720. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 24%
17. 17.₹4000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹4320 (b) ₹1280 (c) ₹5600 (d) ₹5280
18. 18.₹2500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹4000 (b) ₹2800 (c) ₹4300 (d) ₹1500
19. 19.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹3605 (c) ₹3815 (d) ₹3920
20. 20.₹2000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹2140 (b) ₹2420 (c) ₹280 (d) ₹2280
21. 21.In how many years will ₹7000 earn ₹840 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
22. 22.₹10000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹14000 (b) ₹13200 (c) ₹3200 (d) ₹10800
23. 23.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
24. 24.The simple interest on ₹10000 for 4 years is ₹4400. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 44%
25. 25.What is the simple interest on ₹9500 at 2% per year for 4 years? (a) ₹190 (b) ₹950 (c) ₹10260 (d) ₹760
26. 26.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹1365 (b) ₹7410 (c) ₹910 (d) ₹455
27. 27.₹3000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3270 (b) ₹3810 (c) ₹810 (d) ₹4080
28. 28.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
29. 29.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
30. 30.What is the simple interest on ₹5500 at 11% per year for 4 years? (a) ₹3025 (b) ₹605 (c) ₹2420 (d) ₹7920
31. 31.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
32. 32.₹6500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹8450 (b) ₹1950 (c) ₹8840 (d) ₹6890
33. 33.The simple interest on ₹8000 for 2 years is ₹1760. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 22%
34. 34.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹840 (b) ₹560 (c) ₹280 (d) ₹7560
35. 35.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%
36. 36.₹8500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹14620 (b) ₹13600 (c) ₹9520 (d) ₹5100
37. 37.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3720 (b) ₹3480 (c) ₹480 (d) ₹3240
38. 38.The simple interest on ₹2500 for 4 years is ₹600. What is the rate per year? (a) 6% (b) 7% (c) 24% (d) 5%
39. 39.What is the simple interest on ₹7000 at 8% per year for 2 years? (a) ₹1680 (b) ₹8120 (c) ₹560 (d) ₹1120
40. 40.In how many years will ₹2500 earn ₹250 simple interest at 2% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years

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