Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 94 · 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.In how many years will ₹4500 earn ₹1350 simple interest at 6% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
2. 2.The simple interest on ₹1000 for 2 years is ₹120. What is the rate per year? (a) 12% (b) 7% (c) 5% (d) 6%
3. 3.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
4. 4.In how many years will ₹1000 earn ₹270 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
5. 5.In how many years will ₹3500 earn ₹1925 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
6. 6.In how many years will ₹2500 earn ₹150 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
7. 7.The simple interest on ₹9500 for 3 years is ₹1710. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 18%
8. 8.In how many years will ₹1500 earn ₹525 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
9. 9.₹8500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8925 (b) ₹1275 (c) ₹9775 (d) ₹10200
10. 10.The simple interest on ₹8000 for 5 years is ₹800. What is the rate per year? (a) 10% (b) 1% (c) 2% (d) 3%
11. 11.What is the simple interest on ₹4000 at 3% per year for 5 years? (a) ₹4600 (b) ₹720 (c) ₹120 (d) ₹600
12. 12.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹500 (b) ₹5400 (c) ₹400 (d) ₹100
13. 13.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 24% (b) 12% (c) 11% (d) 13%
14. 14.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹2200 (b) ₹4440 (c) ₹6200 (d) ₹6640
15. 15.The simple interest on ₹9500 for 5 years is ₹1425. What is the rate per year? (a) 3% (b) 4% (c) 15% (d) 2%
16. 16.In how many years will ₹1500 earn ₹450 simple interest at 6% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
17. 17.In how many years will ₹2000 earn ₹400 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
18. 18.In how many years will ₹9500 earn ₹760 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
19. 19.In how many years will ₹2500 earn ₹300 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
20. 20.What is the simple interest on ₹9000 at 6% per year for 4 years? (a) ₹540 (b) ₹2700 (c) ₹11160 (d) ₹2160
21. 21.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 3% (b) 20% (c) 4% (d) 5%
22. 22.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹750 (b) ₹250 (c) ₹500 (d) ₹3000
23. 23.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹2600 (c) ₹400 (d) ₹2400
24. 24.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
25. 25.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
26. 26.In how many years will ₹8500 earn ₹3060 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
27. 27.What is the simple interest on ₹5000 at 8% per year for 5 years? (a) ₹400 (b) ₹2000 (c) ₹2400 (d) ₹7000
28. 28.In how many years will ₹8000 earn ₹640 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
29. 29.In how many years will ₹10000 earn ₹1500 simple interest at 3% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
30. 30.What is the simple interest on ₹9000 at 7% per year for 5 years? (a) ₹630 (b) ₹12150 (c) ₹3150 (d) ₹3780
31. 31.The simple interest on ₹6500 for 4 years is ₹2340. What is the rate per year? (a) 8% (b) 10% (c) 36% (d) 9%
32. 32.What is the simple interest on ₹9500 at 7% per year for 2 years? (a) ₹665 (b) ₹1995 (c) ₹1330 (d) ₹10830
33. 33.In how many years will ₹1500 earn ₹300 simple interest at 5% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
34. 34.What is the simple interest on ₹4000 at 7% per year for 3 years? (a) ₹280 (b) ₹1120 (c) ₹4840 (d) ₹840
35. 35.₹4500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹4725 (b) ₹1125 (c) ₹5850 (d) ₹5625
36. 36.What is the simple interest on ₹8000 at 4% per year for 2 years? (a) ₹8640 (b) ₹320 (c) ₹640 (d) ₹960
37. 37.The simple interest on ₹3500 for 5 years is ₹1400. What is the rate per year? (a) 40% (b) 7% (c) 8% (d) 9%
38. 38.In how many years will ₹9000 earn ₹2880 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
39. 39.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹4620 (b) ₹1400 (c) ₹1120 (d) ₹280
40. 40.The simple interest on ₹5500 for 5 years is ₹2475. What is the rate per year? (a) 10% (b) 8% (c) 45% (d) 9%

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