Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 751 · 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 4% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹3120 (c) ₹3600 (d) ₹3480
2. 2.In how many years will ₹8500 earn ₹3740 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
3. 3.₹7000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹840 (b) ₹7280 (c) ₹7840 (d) ₹8120
4. 4.The simple interest on ₹3500 for 3 years is ₹420. What is the rate per year? (a) 4% (b) 12% (c) 5% (d) 3%
5. 5.What is the simple interest on ₹7500 at 5% per year for 2 years? (a) ₹8250 (b) ₹1125 (c) ₹375 (d) ₹750
6. 6.₹10000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹12400 (c) ₹12000 (d) ₹10400
7. 7.In how many years will ₹4000 earn ₹1280 simple interest at 8% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
8. 8.In how many years will ₹6500 earn ₹1560 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
9. 9.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹7800 (b) ₹600 (c) ₹2400 (d) ₹1800
10. 10.₹9500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹10925 (b) ₹10450 (c) ₹950 (d) ₹9975
11. 11.₹4000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1920 (b) ₹6400 (c) ₹4480 (d) ₹5920
12. 12.The simple interest on ₹9500 for 3 years is ₹570. What is the rate per year? (a) 1% (b) 2% (c) 6% (d) 3%
13. 13.₹4500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹5850 (b) ₹4770 (c) ₹5580 (d) ₹1080
14. 14.What is the simple interest on ₹6500 at 7% per year for 4 years? (a) ₹1820 (b) ₹2275 (c) ₹455 (d) ₹8320
15. 15.The simple interest on ₹10000 for 4 years is ₹4400. What is the rate per year? (a) 12% (b) 11% (c) 44% (d) 10%
16. 16.What is the simple interest on ₹6500 at 7% per year for 3 years? (a) ₹1365 (b) ₹455 (c) ₹7865 (d) ₹1820
17. 17.The simple interest on ₹3000 for 4 years is ₹1200. What is the rate per year? (a) 11% (b) 40% (c) 9% (d) 10%
18. 18.What is the simple interest on ₹2000 at 7% per year for 4 years? (a) ₹2560 (b) ₹560 (c) ₹140 (d) ₹700
19. 19.In how many years will ₹5000 earn ₹300 simple interest at 2% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
20. 20.What is the simple interest on ₹4000 at 5% per year for 2 years? (a) ₹600 (b) ₹4400 (c) ₹200 (d) ₹400
21. 21.What is the simple interest on ₹2000 at 10% per year for 3 years? (a) ₹200 (b) ₹600 (c) ₹800 (d) ₹2600
22. 22.The simple interest on ₹3000 for 4 years is ₹1440. What is the rate per year? (a) 48% (b) 13% (c) 11% (d) 12%
23. 23.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹360 (b) ₹180 (c) ₹1860 (d) ₹540
24. 24.In how many years will ₹2000 earn ₹600 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
25. 25.What is the simple interest on ₹3500 at 4% per year for 5 years? (a) ₹4200 (b) ₹840 (c) ₹140 (d) ₹700
26. 26.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹5750 (c) ₹600 (d) ₹5150
27. 27.In how many years will ₹4000 earn ₹2400 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
28. 28.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
29. 29.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹100 (b) ₹2200 (c) ₹300 (d) ₹200
30. 30.₹7500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹10500 (c) ₹8100 (d) ₹9900
31. 31.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
32. 32.In how many years will ₹2500 earn ₹1250 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
33. 33.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹560 (b) ₹280 (c) ₹840 (d) ₹7560
34. 34.In how many years will ₹2000 earn ₹200 simple interest at 5% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
35. 35.The simple interest on ₹8500 for 4 years is ₹2720. What is the rate per year? (a) 8% (b) 32% (c) 7% (d) 9%
36. 36.₹10000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹3500 (b) ₹13500 (c) ₹10700 (d) ₹14200
37. 37.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹220 (b) ₹440 (c) ₹2440 (d) ₹660
38. 38.In how many years will ₹3000 earn ₹600 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
39. 39.The simple interest on ₹5000 for 2 years is ₹300. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
40. 40.₹2000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹2220 (b) ₹1100 (c) ₹3320 (d) ₹3100

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