Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 491 · 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.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1600 (b) ₹4320 (c) ₹5920 (d) ₹5600
2. 2.The simple interest on ₹5500 for 4 years is ₹660. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 12%
3. 3.The simple interest on ₹10000 for 3 years is ₹1800. What is the rate per year? (a) 18% (b) 5% (c) 6% (d) 7%
4. 4.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8480 (b) ₹8240 (c) ₹8720 (d) ₹480
5. 5.What is the simple interest on ₹6000 at 6% per year for 5 years? (a) ₹360 (b) ₹1800 (c) ₹7800 (d) ₹2160
6. 6.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 9% (b) 7% (c) 24% (d) 8%
7. 7.₹3000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹3180 (c) ₹3540 (d) ₹3360
8. 8.₹4500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7200 (b) ₹4950 (c) ₹2250 (d) ₹6750
9. 9.The simple interest on ₹1500 for 3 years is ₹495. What is the rate per year? (a) 33% (b) 11% (c) 10% (d) 12%
10. 10.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹4950 (b) ₹225 (c) ₹675 (d) ₹450
11. 11.In how many years will ₹4000 earn ₹1320 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
12. 12.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹3600 (c) ₹3480 (d) ₹3120
13. 13.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 5% (b) 3% (c) 8% (d) 4%
14. 14.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹2850 (b) ₹3025 (c) ₹350 (d) ₹2675
15. 15.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹110 (b) ₹1440 (c) ₹550 (d) ₹440
16. 16.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹2600 (c) ₹2800 (d) ₹2700
17. 17.What is the simple interest on ₹9000 at 7% per year for 5 years? (a) ₹630 (b) ₹3780 (c) ₹12150 (d) ₹3150
18. 18.The simple interest on ₹9500 for 5 years is ₹950. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 10%
19. 19.The simple interest on ₹7000 for 5 years is ₹2800. What is the rate per year? (a) 8% (b) 9% (c) 40% (d) 7%
20. 20.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 2% (b) 4% (c) 1% (d) 3%
21. 21.What is the simple interest on ₹3500 at 9% per year for 4 years? (a) ₹315 (b) ₹1575 (c) ₹1260 (d) ₹4760
22. 22.₹1500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹375 (b) ₹1575 (c) ₹1875 (d) ₹1950
23. 23.₹4000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹5400 (b) ₹1120 (c) ₹4280 (d) ₹5120
24. 24.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹160 (b) ₹240 (c) ₹4160 (d) ₹80
25. 25.The simple interest on ₹4500 for 2 years is ₹270. What is the rate per year? (a) 6% (b) 4% (c) 2% (d) 3%
26. 26.The simple interest on ₹8500 for 2 years is ₹1530. What is the rate per year? (a) 8% (b) 9% (c) 18% (d) 10%
27. 27.In how many years will ₹4500 earn ₹1575 simple interest at 7% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
28. 28.In how many years will ₹8500 earn ₹1020 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
29. 29.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
30. 30.In how many years will ₹9000 earn ₹3150 simple interest at 7% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
31. 31.The simple interest on ₹3500 for 5 years is ₹875. What is the rate per year? (a) 6% (b) 25% (c) 5% (d) 4%
32. 32.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹2240 (b) ₹80 (c) ₹320 (d) ₹240
33. 33.The simple interest on ₹4500 for 5 years is ₹2250. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 50%
34. 34.The simple interest on ₹8000 for 3 years is ₹1920. What is the rate per year? (a) 9% (b) 24% (c) 7% (d) 8%
35. 35.What is the simple interest on ₹7500 at 7% per year for 3 years? (a) ₹2100 (b) ₹525 (c) ₹9075 (d) ₹1575
36. 36.What is the simple interest on ₹2000 at 11% per year for 4 years? (a) ₹220 (b) ₹880 (c) ₹2880 (d) ₹1100
37. 37.In how many years will ₹6000 earn ₹960 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
38. 38.The simple interest on ₹7500 for 4 years is ₹600. What is the rate per year? (a) 3% (b) 2% (c) 8% (d) 1%
39. 39.The simple interest on ₹4500 for 4 years is ₹1800. What is the rate per year? (a) 9% (b) 40% (c) 10% (d) 11%
40. 40.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10080 (b) ₹2160 (c) ₹12240 (d) ₹11160

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