Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 734 · 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.₹3000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹3600 (c) ₹3150 (d) ₹3450
2. 2.In how many years will ₹7000 earn ₹1750 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
3. 3.The simple interest on ₹7000 for 3 years is ₹630. What is the rate per year? (a) 4% (b) 3% (c) 9% (d) 2%
4. 4.In how many years will ₹2000 earn ₹800 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
5. 5.₹5500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹6160 (b) ₹2640 (c) ₹8800 (d) ₹8140
6. 6.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹280 (b) ₹3780 (c) ₹3640 (d) ₹3920
7. 7.In how many years will ₹2000 earn ₹200 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
8. 8.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 6%
9. 9.₹10000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹11600 (b) ₹12000 (c) ₹1600 (d) ₹10400
10. 10.What is the simple interest on ₹2000 at 7% per year for 2 years? (a) ₹140 (b) ₹420 (c) ₹2280 (d) ₹280
11. 11.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 27%
12. 12.The simple interest on ₹9500 for 2 years is ₹380. What is the rate per year? (a) 1% (b) 4% (c) 2% (d) 3%
13. 13.What is the simple interest on ₹6500 at 2% per year for 3 years? (a) ₹520 (b) ₹6890 (c) ₹130 (d) ₹390
14. 14.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹720 (b) ₹180 (c) ₹9540 (d) ₹540
15. 15.In how many years will ₹7000 earn ₹3150 simple interest at 9% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
16. 16.The simple interest on ₹3000 for 2 years is ₹420. What is the rate per year? (a) 8% (b) 6% (c) 14% (d) 7%
17. 17.What is the simple interest on ₹4000 at 11% per year for 4 years? (a) ₹5760 (b) ₹1760 (c) ₹2200 (d) ₹440
18. 18.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
19. 19.The simple interest on ₹9500 for 3 years is ₹1425. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 15%
20. 20.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹170 (b) ₹9010 (c) ₹510 (d) ₹680
21. 21.In how many years will ₹5000 earn ₹1200 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
22. 22.What is the simple interest on ₹3000 at 10% per year for 2 years? (a) ₹3600 (b) ₹600 (c) ₹900 (d) ₹300
23. 23.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹195 (b) ₹780 (c) ₹585 (d) ₹7085
24. 24.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
25. 25.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹2000 (b) ₹400 (c) ₹2400 (d) ₹10000
26. 26.What is the simple interest on ₹7000 at 5% per year for 3 years? (a) ₹350 (b) ₹8050 (c) ₹1400 (d) ₹1050
27. 27.In how many years will ₹7500 earn ₹3750 simple interest at 10% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
28. 28.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹5700 (b) ₹15200 (c) ₹1140 (d) ₹6840
29. 29.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 20%
30. 30.What is the simple interest on ₹3500 at 3% per year for 4 years? (a) ₹525 (b) ₹420 (c) ₹3920 (d) ₹105
31. 31.The simple interest on ₹9000 for 2 years is ₹1440. What is the rate per year? (a) 8% (b) 9% (c) 16% (d) 7%
32. 32.The simple interest on ₹8000 for 2 years is ₹1600. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 20%
33. 33.In how many years will ₹4500 earn ₹675 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
34. 34.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 16% (b) 3% (c) 4% (d) 5%
35. 35.In how many years will ₹6500 earn ₹1040 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
36. 36.In how many years will ₹8000 earn ₹640 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
37. 37.In how many years will ₹4000 earn ₹240 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
38. 38.What is the simple interest on ₹6000 at 11% per year for 4 years? (a) ₹8640 (b) ₹2640 (c) ₹660 (d) ₹3300
39. 39.In how many years will ₹4500 earn ₹900 simple interest at 4% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
40. 40.What is the simple interest on ₹4000 at 9% per year for 5 years? (a) ₹2160 (b) ₹1800 (c) ₹360 (d) ₹5800

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