Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 125 · 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 2 years is ₹840. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 14%
2. 2.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹1140 (b) ₹6840 (c) ₹5700 (d) ₹15200
3. 3.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 13% (b) 24% (c) 12% (d) 11%
4. 4.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
5. 5.₹6500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹7280 (b) ₹9620 (c) ₹2340 (d) ₹8840
6. 6.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
7. 7.₹3000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹4080 (b) ₹1080 (c) ₹3360 (d) ₹4440
8. 8.What is the simple interest on ₹3500 at 12% per year for 2 years? (a) ₹1260 (b) ₹4340 (c) ₹840 (d) ₹420
9. 9.In how many years will ₹6000 earn ₹720 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
10. 10.In how many years will ₹3500 earn ₹560 simple interest at 8% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
11. 11.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹495 (b) ₹6160 (c) ₹5995 (d) ₹5665
12. 12.What is the simple interest on ₹1500 at 11% per year for 2 years? (a) ₹1830 (b) ₹165 (c) ₹330 (d) ₹495
13. 13.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3325 (b) ₹550 (c) ₹2775 (d) ₹3050
14. 14.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 1% (b) 4% (c) 3% (d) 2%
15. 15.₹4000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1000 (b) ₹4200 (c) ₹5000 (d) ₹5200
16. 16.The simple interest on ₹6000 for 4 years is ₹480. What is the rate per year? (a) 3% (b) 2% (c) 8% (d) 1%
17. 17.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 12%
18. 18.₹6000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6480 (b) ₹6720 (c) ₹480 (d) ₹6240
19. 19.What is the simple interest on ₹8000 at 2% per year for 2 years? (a) ₹160 (b) ₹480 (c) ₹320 (d) ₹8320
20. 20.In how many years will ₹8000 earn ₹2640 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
21. 21.₹1500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1665 (b) ₹330 (c) ₹1995 (d) ₹1830
22. 22.In how many years will ₹9000 earn ₹2430 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
23. 23.In how many years will ₹7000 earn ₹2520 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
24. 24.The simple interest on ₹8500 for 4 years is ₹3400. What is the rate per year? (a) 40% (b) 9% (c) 11% (d) 10%
25. 25.In how many years will ₹8500 earn ₹1785 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
26. 26.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 12% (b) 44% (c) 10% (d) 11%
27. 27.In how many years will ₹7500 earn ₹2400 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
28. 28.What is the simple interest on ₹6500 at 2% per year for 4 years? (a) ₹650 (b) ₹7020 (c) ₹520 (d) ₹130
29. 29.In how many years will ₹2500 earn ₹1250 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
30. 30.In how many years will ₹3000 earn ₹1080 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
31. 31.In how many years will ₹2000 earn ₹720 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
32. 32.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1125 (b) ₹8625 (c) ₹7875 (d) ₹9000
33. 33.₹1500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹1680 (c) ₹180 (d) ₹1740
34. 34.In how many years will ₹5000 earn ₹400 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
35. 35.The simple interest on ₹1000 for 2 years is ₹180. What is the rate per year? (a) 9% (b) 10% (c) 18% (d) 8%
36. 36.₹2500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹375 (b) ₹2875 (c) ₹2575 (d) ₹2950
37. 37.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹810 (b) ₹1620 (c) ₹2430 (d) ₹10620
38. 38.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 12%
39. 39.The simple interest on ₹7000 for 5 years is ₹1050. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
40. 40.In how many years will ₹8000 earn ₹1280 simple interest at 8% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years

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