Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 71 · 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.In how many years will ₹6000 earn ₹360 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
2. 2.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹400 (b) ₹2800 (c) ₹100 (d) ₹300
3. 3.₹3000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹3270 (c) ₹4350 (d) ₹4620
4. 4.In how many years will ₹1500 earn ₹825 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
5. 5.In how many years will ₹6500 earn ₹3120 simple interest at 12% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
6. 6.In how many years will ₹8000 earn ₹2000 simple interest at 5% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
7. 7.What is the simple interest on ₹7500 at 5% per year for 2 years? (a) ₹8250 (b) ₹750 (c) ₹1125 (d) ₹375
8. 8.The simple interest on ₹9500 for 4 years is ₹3420. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
9. 9.In how many years will ₹3000 earn ₹360 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
10. 10.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 6% (b) 8% (c) 21% (d) 7%
11. 11.In how many years will ₹2500 earn ₹150 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
12. 12.The simple interest on ₹3500 for 3 years is ₹420. What is the rate per year? (a) 5% (b) 3% (c) 12% (d) 4%
13. 13.What is the simple interest on ₹2000 at 12% per year for 5 years? (a) ₹3200 (b) ₹1200 (c) ₹240 (d) ₹1440
14. 14.₹9500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10640 (b) ₹9690 (c) ₹10450 (d) ₹950
15. 15.The simple interest on ₹2500 for 3 years is ₹375. What is the rate per year? (a) 4% (b) 15% (c) 5% (d) 6%
16. 16.₹8000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹10880 (b) ₹2400 (c) ₹8480 (d) ₹10400
17. 17.In how many years will ₹6000 earn ₹360 simple interest at 2% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
18. 18.₹9000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹14940 (b) ₹13950 (c) ₹9990 (d) ₹4950
19. 19.In how many years will ₹1000 earn ₹100 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
20. 20.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹2700 (b) ₹3240 (c) ₹540 (d) ₹8700
21. 21.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 5%
22. 22.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹1400 (b) ₹1120 (c) ₹5120 (d) ₹280
23. 23.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 18% (b) 6% (c) 5% (d) 7%
24. 24.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹30 (b) ₹1060 (c) ₹60 (d) ₹90
25. 25.₹8000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹8800 (c) ₹8400 (d) ₹9200
26. 26.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹405 (b) ₹4905 (c) ₹5040 (d) ₹4635
27. 27.The simple interest on ₹6000 for 4 years is ₹2880. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
28. 28.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹80 (b) ₹1120 (c) ₹1080 (d) ₹1040
29. 29.The simple interest on ₹10000 for 2 years is ₹800. What is the rate per year? (a) 8% (b) 3% (c) 4% (d) 5%
30. 30.₹10000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹12400 (b) ₹12000 (c) ₹2000 (d) ₹10400
31. 31.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 4% (c) 8% (d) 5%
32. 32.In how many years will ₹9000 earn ₹5400 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
33. 33.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9720 (b) ₹9180 (c) ₹9900 (d) ₹720
34. 34.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3325 (b) ₹550 (c) ₹2775 (d) ₹3050
35. 35.The simple interest on ₹8000 for 2 years is ₹1280. What is the rate per year? (a) 9% (b) 8% (c) 16% (d) 7%
36. 36.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
37. 37.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹440 (b) ₹1440 (c) ₹110 (d) ₹550
38. 38.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
39. 39.₹4000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹4840 (b) ₹4560 (c) ₹4280 (d) ₹560
40. 40.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years

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