Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 379 · 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.₹6000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹6720 (b) ₹8880 (c) ₹8160 (d) ₹2160
2. 2.₹5500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹5830 (b) ₹7150 (c) ₹1320 (d) ₹6820
3. 3.The simple interest on ₹8500 for 4 years is ₹3060. What is the rate per year? (a) 8% (b) 36% (c) 9% (d) 10%
4. 4.What is the simple interest on ₹1500 at 9% per year for 2 years? (a) ₹1770 (b) ₹270 (c) ₹135 (d) ₹405
5. 5.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹810 (c) ₹1080 (d) ₹9810
6. 6.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 25%
7. 7.The simple interest on ₹3000 for 5 years is ₹1500. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
8. 8.The simple interest on ₹4000 for 4 years is ₹1280. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 32%
9. 9.What is the simple interest on ₹1500 at 8% per year for 2 years? (a) ₹1740 (b) ₹360 (c) ₹240 (d) ₹120
10. 10.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹7500 (b) ₹3000 (c) ₹2500 (d) ₹500
11. 11.In how many years will ₹10000 earn ₹400 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
12. 12.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1320 (b) ₹6660 (c) ₹7980 (d) ₹7320
13. 13.What is the simple interest on ₹9000 at 2% per year for 2 years? (a) ₹180 (b) ₹360 (c) ₹540 (d) ₹9360
14. 14.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹200 (b) ₹50 (c) ₹1200 (d) ₹250
15. 15.₹1000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹60 (c) ₹1020 (d) ₹1060
16. 16.What is the simple interest on ₹2000 at 11% per year for 3 years? (a) ₹660 (b) ₹2660 (c) ₹220 (d) ₹880
17. 17.The simple interest on ₹8000 for 3 years is ₹960. What is the rate per year? (a) 12% (b) 5% (c) 4% (d) 3%
18. 18.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹300 (b) ₹600 (c) ₹900 (d) ₹5600
19. 19.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹8720 (c) ₹8240 (d) ₹8480
20. 20.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹7800 (b) ₹600 (c) ₹2400 (d) ₹1800
21. 21.In how many years will ₹3000 earn ₹660 simple interest at 11% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
22. 22.The simple interest on ₹6500 for 3 years is ₹585. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 9%
23. 23.The simple interest on ₹1000 for 5 years is ₹600. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 60%
24. 24.What is the simple interest on ₹7500 at 6% per year for 4 years? (a) ₹9300 (b) ₹1800 (c) ₹2250 (d) ₹450
25. 25.In how many years will ₹8000 earn ₹1760 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
26. 26.₹5000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹6800 (b) ₹1350 (c) ₹6350 (d) ₹5450
27. 27.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹140 (b) ₹420 (c) ₹3780 (d) ₹280
28. 28.The simple interest on ₹2000 for 3 years is ₹660. What is the rate per year? (a) 12% (b) 33% (c) 11% (d) 10%
29. 29.In how many years will ₹3500 earn ₹1260 simple interest at 12% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
30. 30.₹3000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹3180 (b) ₹3900 (c) ₹720 (d) ₹3720
31. 31.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 6%
32. 32.The simple interest on ₹9000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
33. 33.In how many years will ₹9000 earn ₹900 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
34. 34.₹9000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹9630 (c) ₹10890 (d) ₹1260
35. 35.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹4200 (b) ₹10360 (c) ₹3360 (d) ₹840
36. 36.The simple interest on ₹4500 for 4 years is ₹1260. What is the rate per year? (a) 8% (b) 6% (c) 28% (d) 7%
37. 37.What is the simple interest on ₹3000 at 4% per year for 5 years? (a) ₹720 (b) ₹600 (c) ₹3600 (d) ₹120
38. 38.What is the simple interest on ₹5500 at 8% per year for 2 years? (a) ₹440 (b) ₹880 (c) ₹6380 (d) ₹1320
39. 39.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8800 (b) ₹3200 (c) ₹12000 (d) ₹11200
40. 40.The simple interest on ₹9000 for 2 years is ₹1260. What is the rate per year? (a) 8% (b) 6% (c) 14% (d) 7%

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