Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 949 · 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.The simple interest on ₹4500 for 3 years is ₹405. What is the rate per year? (a) 3% (b) 2% (c) 9% (d) 4%
2. 2.What is the simple interest on ₹6000 at 7% per year for 2 years? (a) ₹6840 (b) ₹840 (c) ₹420 (d) ₹1260
3. 3.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹5120 (b) ₹1400 (c) ₹280 (d) ₹1120
4. 4.The simple interest on ₹9000 for 4 years is ₹1080. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 12%
5. 5.What is the simple interest on ₹7500 at 6% per year for 3 years? (a) ₹1800 (b) ₹1350 (c) ₹8850 (d) ₹450
6. 6.The simple interest on ₹4000 for 2 years is ₹720. What is the rate per year? (a) 10% (b) 18% (c) 8% (d) 9%
7. 7.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹400 (b) ₹5300 (c) ₹300 (d) ₹100
8. 8.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹640 (b) ₹160 (c) ₹480 (d) ₹8480
9. 9.In how many years will ₹1500 earn ₹270 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
10. 10.What is the simple interest on ₹8500 at 4% per year for 4 years? (a) ₹1700 (b) ₹1360 (c) ₹340 (d) ₹9860
11. 11.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 40%
12. 12.₹5000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5450 (b) ₹900 (c) ₹6350 (d) ₹5900
13. 13.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
14. 14.What is the simple interest on ₹7500 at 11% per year for 4 years? (a) ₹3300 (b) ₹4125 (c) ₹825 (d) ₹10800
15. 15.₹3000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹3330 (b) ₹990 (c) ₹3990 (d) ₹4320
16. 16.What is the simple interest on ₹8500 at 2% per year for 2 years? (a) ₹510 (b) ₹340 (c) ₹170 (d) ₹8840
17. 17.₹2000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2640 (b) ₹2160 (c) ₹480 (d) ₹2480
18. 18.₹4500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹7740 (c) ₹5040 (d) ₹7200
19. 19.₹3500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3780 (b) ₹1120 (c) ₹4620 (d) ₹4900
20. 20.The simple interest on ₹8500 for 4 years is ₹3060. What is the rate per year? (a) 8% (b) 36% (c) 10% (d) 9%
21. 21.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
22. 22.₹3000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹3540 (b) ₹3090 (c) ₹450 (d) ₹3450
23. 23.What is the simple interest on ₹6000 at 3% per year for 4 years? (a) ₹180 (b) ₹900 (c) ₹720 (d) ₹6720
24. 24.₹8000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹12320 (b) ₹11600 (c) ₹3600 (d) ₹8720
25. 25.₹7000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2100 (b) ₹9100 (c) ₹9520 (d) ₹7420
26. 26.In how many years will ₹7000 earn ₹4200 simple interest at 12% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
27. 27.The simple interest on ₹5500 for 3 years is ₹660. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
28. 28.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹225 (b) ₹1545 (c) ₹1770 (d) ₹1725
29. 29.In how many years will ₹3000 earn ₹600 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
30. 30.In how many years will ₹5000 earn ₹750 simple interest at 3% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
31. 31.What is the simple interest on ₹3500 at 6% per year for 4 years? (a) ₹210 (b) ₹840 (c) ₹4340 (d) ₹1050
32. 32.The simple interest on ₹8500 for 3 years is ₹1785. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
33. 33.In how many years will ₹5500 earn ₹550 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
34. 34.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2875 (b) ₹2800 (c) ₹300 (d) ₹2575
35. 35.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5600 (b) ₹5150 (c) ₹5450 (d) ₹450
36. 36.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹11700 (b) ₹12600 (c) ₹2700 (d) ₹9900
37. 37.In how many years will ₹7000 earn ₹2240 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
38. 38.The simple interest on ₹5000 for 5 years is ₹2500. What is the rate per year? (a) 9% (b) 11% (c) 50% (d) 10%
39. 39.The simple interest on ₹6500 for 3 years is ₹2145. What is the rate per year? (a) 11% (b) 33% (c) 10% (d) 12%
40. 40.In how many years will ₹3500 earn ₹490 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years

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