Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 81 · 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 ₹3000 at 8% per year for 4 years? (a) ₹960 (b) ₹3960 (c) ₹240 (d) ₹1200
2. 2.What is the simple interest on ₹3000 at 2% per year for 5 years? (a) ₹60 (b) ₹360 (c) ₹3300 (d) ₹300
3. 3.The simple interest on ₹4000 for 5 years is ₹1200. What is the rate per year? (a) 5% (b) 30% (c) 6% (d) 7%
4. 4.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6420 (b) ₹7260 (c) ₹6840 (d) ₹840
5. 5.In how many years will ₹3500 earn ₹770 simple interest at 11% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
6. 6.₹10000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹12400 (b) ₹10400 (c) ₹2000 (d) ₹12000
7. 7.₹9500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹10545 (b) ₹13680 (c) ₹12635 (d) ₹3135
8. 8.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
9. 9.In how many years will ₹7000 earn ₹1120 simple interest at 8% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
10. 10.What is the simple interest on ₹4500 at 6% per year for 4 years? (a) ₹1080 (b) ₹1350 (c) ₹5580 (d) ₹270
11. 11.The simple interest on ₹5000 for 2 years is ₹500. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 10%
12. 12.₹8000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8160 (b) ₹8640 (c) ₹640 (d) ₹8800
13. 13.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹300 (b) ₹3400 (c) ₹900 (d) ₹1200
14. 14.The simple interest on ₹10000 for 2 years is ₹400. What is the rate per year? (a) 1% (b) 4% (c) 2% (d) 3%
15. 15.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹60 (c) ₹1530 (d) ₹1590
16. 16.₹5500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹7425 (b) ₹5885 (c) ₹7040 (d) ₹1540
17. 17.The simple interest on ₹6000 for 3 years is ₹900. What is the rate per year? (a) 4% (b) 6% (c) 15% (d) 5%
18. 18.The simple interest on ₹1000 for 3 years is ₹150. What is the rate per year? (a) 6% (b) 15% (c) 5% (d) 4%
19. 19.₹8500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹9775 (b) ₹8755 (c) ₹10030 (d) ₹1275
20. 20.What is the simple interest on ₹5000 at 9% per year for 4 years? (a) ₹6800 (b) ₹1800 (c) ₹450 (d) ₹2250
21. 21.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹1470 (b) ₹7980 (c) ₹980 (d) ₹490
22. 22.The simple interest on ₹8000 for 3 years is ₹2640. What is the rate per year? (a) 12% (b) 33% (c) 11% (d) 10%
23. 23.₹4000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹5800 (b) ₹1800 (c) ₹4360 (d) ₹6160
24. 24.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹960 (b) ₹1200 (c) ₹2960 (d) ₹240
25. 25.₹3500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹210 (b) ₹3710 (c) ₹3815 (d) ₹3605
26. 26.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹400 (b) ₹80 (c) ₹1320 (d) ₹320
27. 27.₹4000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹1440 (b) ₹4480 (c) ₹5920 (d) ₹5440
28. 28.The simple interest on ₹1000 for 3 years is ₹330. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 33%
29. 29.What is the simple interest on ₹6000 at 8% per year for 4 years? (a) ₹7920 (b) ₹480 (c) ₹1920 (d) ₹2400
30. 30.In how many years will ₹9000 earn ₹1890 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
31. 31.The simple interest on ₹7500 for 4 years is ₹1500. What is the rate per year? (a) 4% (b) 6% (c) 20% (d) 5%
32. 32.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
33. 33.₹1000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹150 (b) ₹1050 (c) ₹1200 (d) ₹1150
34. 34.In how many years will ₹7500 earn ₹1800 simple interest at 8% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
35. 35.What is the simple interest on ₹3500 at 5% per year for 3 years? (a) ₹700 (b) ₹4025 (c) ₹525 (d) ₹175
36. 36.What is the simple interest on ₹3000 at 7% per year for 2 years? (a) ₹210 (b) ₹420 (c) ₹630 (d) ₹3420
37. 37.The simple interest on ₹6500 for 4 years is ₹1820. What is the rate per year? (a) 6% (b) 8% (c) 28% (d) 7%
38. 38.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1000 (b) ₹3700 (c) ₹2700 (d) ₹3500
39. 39.₹7500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹900 (b) ₹8700 (c) ₹8400 (d) ₹7800
40. 40.What is the simple interest on ₹4000 at 8% per year for 2 years? (a) ₹4640 (b) ₹960 (c) ₹320 (d) ₹640

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