Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 556 · 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 ₹2000 for 5 years is ₹1100. What is the rate per year? (a) 10% (b) 55% (c) 12% (d) 11%
2. 2.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 6% (b) 7% (c) 5% (d) 18%
3. 3.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹750 (b) ₹3750 (c) ₹150 (d) ₹900
4. 4.What is the simple interest on ₹8000 at 11% per year for 2 years? (a) ₹2640 (b) ₹1760 (c) ₹880 (d) ₹9760
5. 5.The simple interest on ₹8500 for 5 years is ₹3400. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 40%
6. 6.In how many years will ₹5000 earn ₹1050 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
7. 7.What is the simple interest on ₹8000 at 9% per year for 3 years? (a) ₹10160 (b) ₹720 (c) ₹2160 (d) ₹2880
8. 8.₹6000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹9600 (b) ₹3600 (c) ₹6720 (d) ₹10320
9. 9.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹9010 (b) ₹510 (c) ₹170 (d) ₹680
10. 10.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3990 (b) ₹660 (c) ₹3330 (d) ₹3660
11. 11.What is the simple interest on ₹7500 at 3% per year for 2 years? (a) ₹7950 (b) ₹450 (c) ₹225 (d) ₹675
12. 12.The simple interest on ₹7000 for 4 years is ₹840. What is the rate per year? (a) 4% (b) 12% (c) 3% (d) 2%
13. 13.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 3% (b) 6% (c) 1% (d) 2%
14. 14.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹2340 (b) ₹780 (c) ₹8840 (d) ₹3120
15. 15.In how many years will ₹2500 earn ₹450 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
16. 16.₹8500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3400 (b) ₹9180 (c) ₹12580 (d) ₹11900
17. 17.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 35% (b) 7% (c) 6% (d) 8%
18. 18.The simple interest on ₹5000 for 3 years is ₹1650. What is the rate per year? (a) 33% (b) 10% (c) 12% (d) 11%
19. 19.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹1440 (b) ₹1080 (c) ₹5580 (d) ₹360
20. 20.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹1200 (b) ₹240 (c) ₹960 (d) ₹2960
21. 21.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹855 (b) ₹13775 (c) ₹4275 (d) ₹5130
22. 22.₹4000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4080 (b) ₹4240 (c) ₹160 (d) ₹4160
23. 23.The simple interest on ₹2000 for 3 years is ₹300. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 15%
24. 24.₹5500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6160 (b) ₹6820 (c) ₹1320 (d) ₹7480
25. 25.₹8500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹9350 (b) ₹1700 (c) ₹10200 (d) ₹11050
26. 26.In how many years will ₹4500 earn ₹1350 simple interest at 6% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
27. 27.The simple interest on ₹6000 for 2 years is ₹960. What is the rate per year? (a) 7% (b) 8% (c) 16% (d) 9%
28. 28.₹6000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹6540 (c) ₹7620 (d) ₹7080
29. 29.The simple interest on ₹6000 for 2 years is ₹840. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
30. 30.₹5000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹5250 (b) ₹750 (c) ₹6000 (d) ₹5750
31. 31.What is the simple interest on ₹5500 at 9% per year for 2 years? (a) ₹1485 (b) ₹990 (c) ₹6490 (d) ₹495
32. 32.₹8500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8840 (b) ₹9520 (c) ₹1020 (d) ₹9860
33. 33.₹1000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹1120 (c) ₹480 (d) ₹1480
34. 34.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹3710 (b) ₹210 (c) ₹315 (d) ₹105
35. 35.What is the simple interest on ₹4000 at 12% per year for 3 years? (a) ₹5440 (b) ₹1920 (c) ₹1440 (d) ₹480
36. 36.What is the simple interest on ₹2500 at 8% per year for 3 years? (a) ₹3100 (b) ₹200 (c) ₹600 (d) ₹800
37. 37.What is the simple interest on ₹4500 at 8% per year for 5 years? (a) ₹6300 (b) ₹360 (c) ₹1800 (d) ₹2160
38. 38.₹8000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8160 (b) ₹8640 (c) ₹640 (d) ₹8800
39. 39.The simple interest on ₹7000 for 5 years is ₹1050. What is the rate per year? (a) 4% (b) 15% (c) 2% (d) 3%
40. 40.₹10000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹11000 (c) ₹10200 (d) ₹10800

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