Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 93 · 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 ₹6000 for 5 years is ₹1200. What is the rate per year? (a) 4% (b) 5% (c) 20% (d) 3%
2. 2.What is the simple interest on ₹9500 at 3% per year for 2 years? (a) ₹285 (b) ₹10070 (c) ₹570 (d) ₹855
3. 3.₹6000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6660 (b) ₹3300 (c) ₹9960 (d) ₹9300
4. 4.What is the simple interest on ₹3000 at 12% per year for 3 years? (a) ₹360 (b) ₹1440 (c) ₹4080 (d) ₹1080
5. 5.₹9500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9690 (b) ₹10260 (c) ₹10450 (d) ₹760
6. 6.₹3000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹3060 (b) ₹3360 (c) ₹300 (d) ₹3300
7. 7.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1360 (b) ₹1120 (c) ₹240 (d) ₹1240
8. 8.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹90 (b) ₹1090 (c) ₹30 (d) ₹120
9. 9.In how many years will ₹10000 earn ₹2500 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
10. 10.₹5000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5450 (b) ₹5900 (c) ₹6350 (d) ₹900
11. 11.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹9270 (c) ₹10350 (d) ₹10080
12. 12.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
13. 13.What is the simple interest on ₹5000 at 12% per year for 4 years? (a) ₹600 (b) ₹7400 (c) ₹2400 (d) ₹3000
14. 14.In how many years will ₹3000 earn ₹1350 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
15. 15.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹240 (b) ₹720 (c) ₹960 (d) ₹6720
16. 16.The simple interest on ₹3000 for 2 years is ₹480. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 16%
17. 17.₹6500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1170 (b) ₹7085 (c) ₹7670 (d) ₹8255
18. 18.In how many years will ₹2500 earn ₹750 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
19. 19.The simple interest on ₹1500 for 4 years is ₹420. What is the rate per year? (a) 28% (b) 8% (c) 6% (d) 7%
20. 20.In how many years will ₹3000 earn ₹120 simple interest at 2% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
21. 21.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹5800 (b) ₹1000 (c) ₹200 (d) ₹800
22. 22.₹6000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2640 (b) ₹8640 (c) ₹6660 (d) ₹9300
23. 23.₹3000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹3450 (b) ₹3360 (c) ₹360 (d) ₹3090
24. 24.₹3000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹3360 (b) ₹360 (c) ₹3480 (d) ₹3120
25. 25.In how many years will ₹3000 earn ₹1080 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
26. 26.₹7000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10780 (b) ₹7630 (c) ₹3150 (d) ₹10150
27. 27.₹6500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹6890 (b) ₹6695 (c) ₹7085 (d) ₹390
28. 28.What is the simple interest on ₹8000 at 2% per year for 4 years? (a) ₹8640 (b) ₹160 (c) ₹800 (d) ₹640
29. 29.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
30. 30.₹10000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹11000 (b) ₹14000 (c) ₹15000 (d) ₹4000
31. 31.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹4275 (b) ₹13775 (c) ₹5130 (d) ₹855
32. 32.The simple interest on ₹4000 for 5 years is ₹1600. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
33. 33.In how many years will ₹3500 earn ₹490 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
34. 34.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 36% (b) 9% (c) 10% (d) 8%
35. 35.What is the simple interest on ₹1000 at 3% per year for 4 years? (a) ₹120 (b) ₹30 (c) ₹150 (d) ₹1120
36. 36.In how many years will ₹5500 earn ₹1100 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
37. 37.In how many years will ₹1000 earn ₹280 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
38. 38.The simple interest on ₹6000 for 5 years is ₹3600. What is the rate per year? (a) 60% (b) 13% (c) 11% (d) 12%
39. 39.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹3600 (b) ₹8880 (c) ₹2880 (d) ₹720
40. 40.The simple interest on ₹10000 for 5 years is ₹5500. What is the rate per year? (a) 10% (b) 11% (c) 55% (d) 12%

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