Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 606 · 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 ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 12%
2. 2.The simple interest on ₹5000 for 5 years is ₹2250. What is the rate per year? (a) 45% (b) 8% (c) 9% (d) 10%
3. 3.The simple interest on ₹9500 for 5 years is ₹4750. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 50%
4. 4.In how many years will ₹1500 earn ₹120 simple interest at 2% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
5. 5.What is the simple interest on ₹8000 at 9% per year for 2 years? (a) ₹9440 (b) ₹720 (c) ₹1440 (d) ₹2160
6. 6.What is the simple interest on ₹6000 at 4% per year for 5 years? (a) ₹1200 (b) ₹240 (c) ₹1440 (d) ₹7200
7. 7.The simple interest on ₹8500 for 4 years is ₹3060. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 36%
8. 8.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹5600 (b) ₹1600 (c) ₹4320 (d) ₹5920
9. 9.What is the simple interest on ₹7500 at 10% per year for 5 years? (a) ₹4500 (b) ₹750 (c) ₹11250 (d) ₹3750
10. 10.What is the simple interest on ₹1000 at 7% per year for 2 years? (a) ₹70 (b) ₹1140 (c) ₹210 (d) ₹140
11. 11.The simple interest on ₹4500 for 2 years is ₹810. What is the rate per year? (a) 10% (b) 8% (c) 18% (d) 9%
12. 12.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹385 (b) ₹6270 (c) ₹1155 (d) ₹770
13. 13.₹5500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1650 (b) ₹5830 (c) ₹7480 (d) ₹7150
14. 14.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12240 (b) ₹2160 (c) ₹11160 (d) ₹10080
15. 15.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹3090 (c) ₹180 (d) ₹3180
16. 16.₹10000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹13600 (b) ₹11200 (c) ₹14800 (d) ₹3600
17. 17.The simple interest on ₹6500 for 5 years is ₹2925. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 45%
18. 18.The simple interest on ₹9000 for 5 years is ₹3150. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 35%
19. 19.What is the simple interest on ₹6000 at 7% per year for 3 years? (a) ₹1680 (b) ₹7260 (c) ₹1260 (d) ₹420
20. 20.₹1500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1680 (b) ₹1860 (c) ₹360 (d) ₹2040
21. 21.The simple interest on ₹6000 for 4 years is ₹1200. What is the rate per year? (a) 5% (b) 4% (c) 20% (d) 6%
22. 22.₹2500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹300 (b) ₹2600 (c) ₹2900 (d) ₹2800
23. 23.The simple interest on ₹7000 for 3 years is ₹1260. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%
24. 24.In how many years will ₹4500 earn ₹1440 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
25. 25.In how many years will ₹3000 earn ₹1320 simple interest at 11% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
26. 26.In how many years will ₹9000 earn ₹1800 simple interest at 10% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
27. 27.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 1%
28. 28.What is the simple interest on ₹6500 at 11% per year for 3 years? (a) ₹715 (b) ₹2145 (c) ₹2860 (d) ₹8645
29. 29.The simple interest on ₹2500 for 5 years is ₹1500. What is the rate per year? (a) 11% (b) 60% (c) 12% (d) 13%
30. 30.₹10000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹10200 (c) ₹10400 (d) ₹10600
31. 31.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹5150 (c) ₹5600 (d) ₹5450
32. 32.In how many years will ₹10000 earn ₹1000 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
33. 33.The simple interest on ₹6500 for 4 years is ₹3120. What is the rate per year? (a) 11% (b) 48% (c) 12% (d) 13%
34. 34.The simple interest on ₹1000 for 4 years is ₹280. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 28%
35. 35.What is the simple interest on ₹2000 at 9% per year for 3 years? (a) ₹720 (b) ₹540 (c) ₹2540 (d) ₹180
36. 36.₹3500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4340 (b) ₹3710 (c) ₹630 (d) ₹4130
37. 37.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3200 (b) ₹3025 (c) ₹525 (d) ₹2675
38. 38.What is the simple interest on ₹8000 at 12% per year for 5 years? (a) ₹960 (b) ₹5760 (c) ₹12800 (d) ₹4800
39. 39.What is the simple interest on ₹1000 at 7% per year for 4 years? (a) ₹70 (b) ₹1280 (c) ₹350 (d) ₹280
40. 40.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹2600 (c) ₹400 (d) ₹2400

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