Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 85 · 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 ₹1500 for 5 years is ₹675. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 45%
2. 2.In how many years will ₹4500 earn ₹2160 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
3. 3.What is the simple interest on ₹9500 at 5% per year for 4 years? (a) ₹2375 (b) ₹475 (c) ₹1900 (d) ₹11400
4. 4.The simple interest on ₹6000 for 5 years is ₹2100. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 35%
5. 5.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹1080 (b) ₹1440 (c) ₹5580 (d) ₹360
6. 6.In how many years will ₹6000 earn ₹1800 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
7. 7.The simple interest on ₹1000 for 2 years is ₹140. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 14%
8. 8.₹8000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8960 (b) ₹8320 (c) ₹960 (d) ₹9280
9. 9.₹2500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹2650 (b) ₹3100 (c) ₹600 (d) ₹3250
10. 10.The simple interest on ₹2500 for 4 years is ₹500. What is the rate per year? (a) 4% (b) 6% (c) 20% (d) 5%
11. 11.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
12. 12.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
13. 13.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3745 (b) ₹4480 (c) ₹735 (d) ₹4235
14. 14.₹4500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹5850 (b) ₹4950 (c) ₹1350 (d) ₹6300
15. 15.What is the simple interest on ₹5500 at 3% per year for 5 years? (a) ₹165 (b) ₹825 (c) ₹6325 (d) ₹990
16. 16.What is the simple interest on ₹5000 at 6% per year for 3 years? (a) ₹1200 (b) ₹5900 (c) ₹300 (d) ₹900
17. 17.What is the simple interest on ₹4500 at 4% per year for 5 years? (a) ₹1080 (b) ₹180 (c) ₹5400 (d) ₹900
18. 18.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4130 (b) ₹4445 (c) ₹3815 (d) ₹630
19. 19.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 24%
20. 20.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹220 (b) ₹440 (c) ₹2440 (d) ₹660
21. 21.₹6000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹6600 (c) ₹6720 (d) ₹6120
22. 22.The simple interest on ₹5500 for 4 years is ₹1100. What is the rate per year? (a) 6% (b) 20% (c) 4% (d) 5%
23. 23.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 36% (b) 11% (c) 13% (d) 12%
24. 24.₹2500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3100 (b) ₹600 (c) ₹3300 (d) ₹2700
25. 25.What is the simple interest on ₹2000 at 3% per year for 3 years? (a) ₹2180 (b) ₹240 (c) ₹180 (d) ₹60
26. 26.In how many years will ₹6500 earn ₹1300 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
27. 27.What is the simple interest on ₹5000 at 3% per year for 2 years? (a) ₹450 (b) ₹5300 (c) ₹150 (d) ₹300
28. 28.What is the simple interest on ₹5500 at 6% per year for 4 years? (a) ₹1320 (b) ₹330 (c) ₹1650 (d) ₹6820
29. 29.The simple interest on ₹5500 for 2 years is ₹440. What is the rate per year? (a) 4% (b) 8% (c) 3% (d) 5%
30. 30.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
31. 31.In how many years will ₹2500 earn ₹700 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
32. 32.₹10000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹3500 (b) ₹10700 (c) ₹13500 (d) ₹14200
33. 33.In how many years will ₹9500 earn ₹2375 simple interest at 5% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
34. 34.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
35. 35.₹9000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10080 (b) ₹9180 (c) ₹9900 (d) ₹900
36. 36.The simple interest on ₹1500 for 2 years is ₹360. What is the rate per year? (a) 13% (b) 24% (c) 12% (d) 11%
37. 37.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
38. 38.What is the simple interest on ₹9500 at 4% per year for 4 years? (a) ₹11020 (b) ₹1900 (c) ₹1520 (d) ₹380
39. 39.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
40. 40.What is the simple interest on ₹9000 at 3% per year for 5 years? (a) ₹1350 (b) ₹10350 (c) ₹270 (d) ₹1620

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