Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 780 · 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 ₹7500 for 5 years is ₹3375. What is the rate per year? (a) 8% (b) 10% (c) 45% (d) 9%
2. 2.₹4000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹5080 (b) ₹4360 (c) ₹1080 (d) ₹5440
3. 3.In how many years will ₹7000 earn ₹2240 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
4. 4.₹2500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹150 (b) ₹2700 (c) ₹2650 (d) ₹2550
5. 5.What is the simple interest on ₹9500 at 3% per year for 3 years? (a) ₹1140 (b) ₹10355 (c) ₹285 (d) ₹855
6. 6.The simple interest on ₹6500 for 5 years is ₹1625. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 25%
7. 7.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2080 (b) ₹2600 (c) ₹8580 (d) ₹520
8. 8.The simple interest on ₹3500 for 4 years is ₹700. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 20%
9. 9.What is the simple interest on ₹7500 at 7% per year for 3 years? (a) ₹9075 (b) ₹1575 (c) ₹525 (d) ₹2100
10. 10.In how many years will ₹6000 earn ₹720 simple interest at 3% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
11. 11.What is the simple interest on ₹7000 at 10% per year for 5 years? (a) ₹10500 (b) ₹4200 (c) ₹700 (d) ₹3500
12. 12.What is the simple interest on ₹6500 at 12% per year for 5 years? (a) ₹780 (b) ₹4680 (c) ₹10400 (d) ₹3900
13. 13.What is the simple interest on ₹9000 at 10% per year for 5 years? (a) ₹5400 (b) ₹900 (c) ₹13500 (d) ₹4500
14. 14.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹11250 (b) ₹2700 (c) ₹450 (d) ₹2250
15. 15.In how many years will ₹7500 earn ₹750 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
16. 16.The simple interest on ₹9000 for 3 years is ₹2430. What is the rate per year? (a) 27% (b) 9% (c) 8% (d) 10%
17. 17.The simple interest on ₹6500 for 5 years is ₹1950. What is the rate per year? (a) 6% (b) 30% (c) 7% (d) 5%
18. 18.The simple interest on ₹5500 for 4 years is ₹1320. What is the rate per year? (a) 7% (b) 6% (c) 24% (d) 5%
19. 19.What is the simple interest on ₹2500 at 5% per year for 4 years? (a) ₹125 (b) ₹500 (c) ₹3000 (d) ₹625
20. 20.The simple interest on ₹5000 for 4 years is ₹1600. What is the rate per year? (a) 32% (b) 9% (c) 7% (d) 8%
21. 21.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹480 (b) ₹7440 (c) ₹1440 (d) ₹1920
22. 22.₹5000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹6000 (b) ₹750 (c) ₹5250 (d) ₹5750
23. 23.What is the simple interest on ₹2500 at 7% per year for 3 years? (a) ₹700 (b) ₹3025 (c) ₹175 (d) ₹525
24. 24.₹4500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2160 (b) ₹7200 (c) ₹5040 (d) ₹6660
25. 25.In how many years will ₹7000 earn ₹1400 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
26. 26.In how many years will ₹6500 earn ₹1040 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
27. 27.The simple interest on ₹1500 for 3 years is ₹225. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 15%
28. 28.₹4500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4950 (b) ₹2250 (c) ₹7200 (d) ₹6750
29. 29.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹1060 (b) ₹60 (c) ₹90 (d) ₹30
30. 30.In how many years will ₹9500 earn ₹2850 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
31. 31.In how many years will ₹2500 earn ₹375 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
32. 32.₹4000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹4320 (b) ₹4480 (c) ₹4160 (d) ₹320
33. 33.What is the simple interest on ₹2500 at 8% per year for 4 years? (a) ₹3300 (b) ₹1000 (c) ₹200 (d) ₹800
34. 34.₹5000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹5100 (b) ₹400 (c) ₹5500 (d) ₹5400
35. 35.The simple interest on ₹3000 for 2 years is ₹600. What is the rate per year? (a) 20% (b) 9% (c) 10% (d) 11%
36. 36.₹3500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3815 (b) ₹5390 (c) ₹1575 (d) ₹5075
37. 37.₹1500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2040 (b) ₹1680 (c) ₹1860 (d) ₹360
38. 38.What is the simple interest on ₹6000 at 6% per year for 3 years? (a) ₹7080 (b) ₹1080 (c) ₹360 (d) ₹1440
39. 39.What is the simple interest on ₹2000 at 11% per year for 3 years? (a) ₹880 (b) ₹220 (c) ₹660 (d) ₹2660
40. 40.The simple interest on ₹2500 for 4 years is ₹600. What is the rate per year? (a) 7% (b) 24% (c) 6% (d) 5%

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