Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 736 · 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 ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 11% (b) 12% (c) 48% (d) 13%
2. 2.In how many years will ₹1000 earn ₹400 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
3. 3.What is the simple interest on ₹7500 at 9% per year for 3 years? (a) ₹675 (b) ₹2700 (c) ₹9525 (d) ₹2025
4. 4.In how many years will ₹5000 earn ₹1500 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
5. 5.What is the simple interest on ₹6500 at 3% per year for 5 years? (a) ₹7475 (b) ₹975 (c) ₹1170 (d) ₹195
6. 6.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 10% (b) 22% (c) 11% (d) 12%
7. 7.In how many years will ₹6000 earn ₹1680 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
8. 8.The simple interest on ₹2500 for 4 years is ₹1200. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
9. 9.The simple interest on ₹7000 for 2 years is ₹1400. What is the rate per year? (a) 9% (b) 11% (c) 20% (d) 10%
10. 10.What is the simple interest on ₹9500 at 12% per year for 4 years? (a) ₹1140 (b) ₹4560 (c) ₹5700 (d) ₹14060
11. 11.What is the simple interest on ₹8500 at 7% per year for 3 years? (a) ₹10285 (b) ₹2380 (c) ₹595 (d) ₹1785
12. 12.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 32% (b) 8% (c) 9% (d) 7%
13. 13.In how many years will ₹3000 earn ₹180 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
14. 14.₹7500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1800 (b) ₹9900 (c) ₹9300 (d) ₹8100
15. 15.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹525 (b) ₹1920 (c) ₹105 (d) ₹420
16. 16.What is the simple interest on ₹3500 at 11% per year for 4 years? (a) ₹1925 (b) ₹1540 (c) ₹385 (d) ₹5040
17. 17.In how many years will ₹9000 earn ₹3150 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
18. 18.₹4000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹4480 (c) ₹4600 (d) ₹4120
19. 19.What is the simple interest on ₹8500 at 10% per year for 2 years? (a) ₹1700 (b) ₹850 (c) ₹10200 (d) ₹2550
20. 20.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 21%
21. 21.The simple interest on ₹7000 for 2 years is ₹280. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
22. 22.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
23. 23.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
24. 24.The simple interest on ₹1000 for 4 years is ₹440. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
25. 25.In how many years will ₹9500 earn ₹1520 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
26. 26.In how many years will ₹5500 earn ₹990 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
27. 27.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹60 (b) ₹1060 (c) ₹90 (d) ₹30
28. 28.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1070 (b) ₹1280 (c) ₹1350 (d) ₹280
29. 29.In how many years will ₹2500 earn ₹250 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
30. 30.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹135 (b) ₹540 (c) ₹4905 (d) ₹405
31. 31.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹600 (b) ₹1200 (c) ₹8700 (d) ₹1800
32. 32.In how many years will ₹8000 earn ₹2560 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
33. 33.₹9500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12920 (b) ₹12065 (c) ₹2565 (d) ₹10355
34. 34.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹1000 (b) ₹10800 (c) ₹200 (d) ₹800
35. 35.In how many years will ₹7500 earn ₹2250 simple interest at 10% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
36. 36.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 6% (b) 3% (c) 1% (d) 2%
37. 37.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹320 (b) ₹80 (c) ₹1320 (d) ₹400
38. 38.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 5% (b) 8% (c) 3% (d) 4%
39. 39.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9600 (b) ₹8320 (c) ₹9280 (d) ₹1280
40. 40.The simple interest on ₹1500 for 3 years is ₹495. What is the rate per year? (a) 10% (b) 12% (c) 33% (d) 11%

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