Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 98 · 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.₹3000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹3360 (c) ₹5160 (d) ₹4800
2. 2.The simple interest on ₹7500 for 4 years is ₹3600. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 48%
3. 3.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8320 (b) ₹9600 (c) ₹9920 (d) ₹1600
4. 4.In how many years will ₹1000 earn ₹220 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
5. 5.The simple interest on ₹8000 for 2 years is ₹1280. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 16%
6. 6.₹7500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹7725 (b) ₹1125 (c) ₹8850 (d) ₹8625
7. 7.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
8. 8.The simple interest on ₹3000 for 3 years is ₹1080. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 36%
9. 9.In how many years will ₹6500 earn ₹650 simple interest at 2% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
10. 10.In how many years will ₹5000 earn ₹200 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
11. 11.₹2500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹3100 (c) ₹2800 (d) ₹3400
12. 12.The simple interest on ₹10000 for 2 years is ₹1600. What is the rate per year? (a) 8% (b) 16% (c) 9% (d) 7%
13. 13.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 4%
14. 14.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹7080 (b) ₹6180 (c) ₹900 (d) ₹6900
15. 15.In how many years will ₹3000 earn ₹1500 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
16. 16.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹2800 (b) ₹2240 (c) ₹560 (d) ₹10240
17. 17.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹540 (b) ₹5040 (c) ₹135 (d) ₹675
18. 18.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4445 (b) ₹3815 (c) ₹630 (d) ₹4130
19. 19.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3330 (b) ₹3660 (c) ₹660 (d) ₹3990
20. 20.₹6500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7670 (b) ₹1170 (c) ₹8060 (d) ₹6890
21. 21.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
22. 22.What is the simple interest on ₹5500 at 9% per year for 2 years? (a) ₹495 (b) ₹6490 (c) ₹1485 (d) ₹990
23. 23.The simple interest on ₹8500 for 3 years is ₹3060. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 36%
24. 24.In how many years will ₹7000 earn ₹1120 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
25. 25.In how many years will ₹1000 earn ₹180 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
26. 26.The simple interest on ₹10000 for 5 years is ₹5500. What is the rate per year? (a) 10% (b) 55% (c) 11% (d) 12%
27. 27.In how many years will ₹7000 earn ₹840 simple interest at 3% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
28. 28.What is the simple interest on ₹3000 at 3% per year for 5 years? (a) ₹3450 (b) ₹540 (c) ₹90 (d) ₹450
29. 29.In how many years will ₹1500 earn ₹180 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
30. 30.In how many years will ₹2500 earn ₹450 simple interest at 9% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
31. 31.₹5500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹6160 (b) ₹550 (c) ₹5610 (d) ₹6050
32. 32.₹5500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹6325 (b) ₹5775 (c) ₹550 (d) ₹6050
33. 33.What is the simple interest on ₹1500 at 2% per year for 5 years? (a) ₹1650 (b) ₹30 (c) ₹150 (d) ₹180
34. 34.In how many years will ₹4000 earn ₹1600 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
35. 35.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
36. 36.In how many years will ₹5000 earn ₹1000 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
37. 37.The simple interest on ₹9500 for 3 years is ₹2850. What is the rate per year? (a) 11% (b) 30% (c) 10% (d) 9%
38. 38.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹140 (b) ₹420 (c) ₹3780 (d) ₹280
39. 39.In how many years will ₹3000 earn ₹360 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
40. 40.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years

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