Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 39 · 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 ₹2500 at 8% per year for 2 years? (a) ₹400 (b) ₹600 (c) ₹2900 (d) ₹200
2. 2.The simple interest on ₹4000 for 4 years is ₹1920. What is the rate per year? (a) 13% (b) 48% (c) 12% (d) 11%
3. 3.₹8500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3400 (b) ₹11900 (c) ₹9350 (d) ₹12750
4. 4.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹500 (b) ₹2500 (c) ₹7500 (d) ₹3000
5. 5.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 2% (b) 15% (c) 4% (d) 3%
6. 6.What is the simple interest on ₹1500 at 6% per year for 2 years? (a) ₹1680 (b) ₹90 (c) ₹180 (d) ₹270
7. 7.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹5400 (b) ₹400 (c) ₹500 (d) ₹100
8. 8.₹10000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹10800 (c) ₹10400 (d) ₹11200
9. 9.In how many years will ₹3000 earn ₹1200 simple interest at 10% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
10. 10.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
11. 11.The simple interest on ₹4000 for 2 years is ₹640. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 16%
12. 12.What is the simple interest on ₹4000 at 3% per year for 5 years? (a) ₹720 (b) ₹120 (c) ₹600 (d) ₹4600
13. 13.In how many years will ₹9500 earn ₹1900 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
14. 14.The simple interest on ₹2000 for 3 years is ₹180. What is the rate per year? (a) 2% (b) 9% (c) 4% (d) 3%
15. 15.In how many years will ₹1000 earn ₹320 simple interest at 8% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
16. 16.What is the simple interest on ₹7500 at 2% per year for 2 years? (a) ₹150 (b) ₹450 (c) ₹300 (d) ₹7800
17. 17.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹180 (b) ₹540 (c) ₹4860 (d) ₹360
18. 18.What is the simple interest on ₹8000 at 3% per year for 5 years? (a) ₹1200 (b) ₹9200 (c) ₹1440 (d) ₹240
19. 19.₹9500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹13300 (b) ₹10450 (c) ₹12350 (d) ₹2850
20. 20.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
21. 21.The simple interest on ₹8000 for 5 years is ₹1200. What is the rate per year? (a) 4% (b) 15% (c) 3% (d) 2%
22. 22.The simple interest on ₹2500 for 3 years is ₹300. What is the rate per year? (a) 12% (b) 5% (c) 4% (d) 3%
23. 23.What is the simple interest on ₹4000 at 3% per year for 3 years? (a) ₹480 (b) ₹120 (c) ₹4360 (d) ₹360
24. 24.In how many years will ₹8000 earn ₹1200 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
25. 25.The simple interest on ₹8000 for 3 years is ₹720. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
26. 26.What is the simple interest on ₹6500 at 9% per year for 4 years? (a) ₹2925 (b) ₹8840 (c) ₹2340 (d) ₹585
27. 27.In how many years will ₹8500 earn ₹1700 simple interest at 4% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
28. 28.The simple interest on ₹1500 for 4 years is ₹660. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
29. 29.In how many years will ₹5500 earn ₹2750 simple interest at 10% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
30. 30.The simple interest on ₹8000 for 2 years is ₹1920. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
31. 31.₹8500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2720 (b) ₹11900 (c) ₹11220 (d) ₹9180
32. 32.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
33. 33.What is the simple interest on ₹5500 at 6% per year for 3 years? (a) ₹990 (b) ₹330 (c) ₹6490 (d) ₹1320
34. 34.₹3000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3300 (b) ₹3060 (c) ₹3240 (d) ₹240
35. 35.In how many years will ₹10000 earn ₹5500 simple interest at 11% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
36. 36.The simple interest on ₹3000 for 4 years is ₹480. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
37. 37.In how many years will ₹6000 earn ₹1200 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
38. 38.What is the simple interest on ₹7500 at 6% per year for 3 years? (a) ₹450 (b) ₹1350 (c) ₹8850 (d) ₹1800
39. 39.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1020 (b) ₹9010 (c) ₹10030 (d) ₹9520
40. 40.The simple interest on ₹4000 for 4 years is ₹1440. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 36%

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