Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 57 · 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.What is the simple interest on ₹6000 at 4% per year for 2 years? (a) ₹240 (b) ₹720 (c) ₹480 (d) ₹6480
2. 2.₹4000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹4360 (b) ₹1800 (c) ₹5800 (d) ₹6160
3. 3.The simple interest on ₹3000 for 3 years is ₹180. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
4. 4.In how many years will ₹6500 earn ₹2080 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
5. 5.₹3500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1260 (b) ₹5075 (c) ₹3815 (d) ₹4760
6. 6.In how many years will ₹3500 earn ₹1680 simple interest at 12% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
7. 7.₹4500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹630 (b) ₹5130 (c) ₹4815 (d) ₹5445
8. 8.What is the simple interest on ₹7500 at 10% per year for 3 years? (a) ₹750 (b) ₹9750 (c) ₹2250 (d) ₹3000
9. 9.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 1% (b) 3% (c) 6% (d) 2%
10. 10.₹6000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹6420 (b) ₹7260 (c) ₹7680 (d) ₹1260
11. 11.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5715 (b) ₹4905 (c) ₹810 (d) ₹5310
12. 12.₹1500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹1635 (b) ₹1545 (c) ₹1590 (d) ₹90
13. 13.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
14. 14.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 1% (b) 6% (c) 2% (d) 3%
15. 15.What is the simple interest on ₹6500 at 5% per year for 2 years? (a) ₹650 (b) ₹7150 (c) ₹325 (d) ₹975
16. 16.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹480 (b) ₹1440 (c) ₹1920 (d) ₹7440
17. 17.The simple interest on ₹5000 for 5 years is ₹1250. What is the rate per year? (a) 25% (b) 5% (c) 4% (d) 6%
18. 18.The simple interest on ₹9000 for 2 years is ₹1980. What is the rate per year? (a) 11% (b) 12% (c) 22% (d) 10%
19. 19.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 36% (b) 13% (c) 12% (d) 11%
20. 20.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5750 (b) ₹5600 (c) ₹600 (d) ₹5150
21. 21.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹2000 (b) ₹12000 (c) ₹2400 (d) ₹400
22. 22.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
23. 23.The simple interest on ₹4000 for 3 years is ₹720. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
24. 24.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 2% (b) 15% (c) 4% (d) 3%
25. 25.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹4905 (c) ₹4635 (d) ₹405
26. 26.What is the simple interest on ₹8000 at 12% per year for 3 years? (a) ₹960 (b) ₹2880 (c) ₹3840 (d) ₹10880
27. 27.₹2000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹300 (b) ₹2400 (c) ₹2300 (d) ₹2100
28. 28.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
29. 29.The simple interest on ₹3000 for 5 years is ₹300. What is the rate per year? (a) 3% (b) 10% (c) 1% (d) 2%
30. 30.The simple interest on ₹2000 for 3 years is ₹660. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 33%
31. 31.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹160 (b) ₹2240 (c) ₹2160 (d) ₹2080
32. 32.What is the simple interest on ₹10000 at 11% per year for 3 years? (a) ₹1100 (b) ₹13300 (c) ₹4400 (d) ₹3300
33. 33.In how many years will ₹1500 earn ₹60 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
34. 34.What is the simple interest on ₹3000 at 9% per year for 4 years? (a) ₹4080 (b) ₹1080 (c) ₹1350 (d) ₹270
35. 35.The simple interest on ₹5500 for 5 years is ₹2475. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 45%
36. 36.The simple interest on ₹2000 for 5 years is ₹700. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 35%
37. 37.What is the simple interest on ₹10000 at 7% per year for 2 years? (a) ₹1400 (b) ₹11400 (c) ₹700 (d) ₹2100
38. 38.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹1350 (b) ₹3625 (c) ₹225 (d) ₹1125
39. 39.The simple interest on ₹9000 for 3 years is ₹1890. What is the rate per year? (a) 21% (b) 6% (c) 8% (d) 7%
40. 40.₹9500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹10545 (b) ₹2090 (c) ₹12635 (d) ₹11590

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