Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 803 · 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 ₹10000 for 3 years is ₹3000. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
2. 2.In how many years will ₹6000 earn ₹1200 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
3. 3.₹4000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹320 (b) ₹4160 (c) ₹4480 (d) ₹4320
4. 4.The simple interest on ₹9500 for 5 years is ₹3800. What is the rate per year? (a) 7% (b) 40% (c) 8% (d) 9%
5. 5.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
6. 6.₹5000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹750 (b) ₹5750 (c) ₹5150 (d) ₹5900
7. 7.The simple interest on ₹3500 for 4 years is ₹1540. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 44%
8. 8.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹640 (b) ₹8480 (c) ₹160 (d) ₹480
9. 9.₹3500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4725 (b) ₹1225 (c) ₹4970 (d) ₹3745
10. 10.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 40% (b) 7% (c) 8% (d) 9%
11. 11.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹3885 (c) ₹1155 (d) ₹4655
12. 12.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4400 (b) ₹400 (c) ₹4600 (d) ₹4200
13. 13.What is the simple interest on ₹8500 at 8% per year for 4 years? (a) ₹3400 (b) ₹2720 (c) ₹680 (d) ₹11220
14. 14.What is the simple interest on ₹9000 at 11% per year for 4 years? (a) ₹12960 (b) ₹990 (c) ₹4950 (d) ₹3960
15. 15.The simple interest on ₹1000 for 5 years is ₹350. What is the rate per year? (a) 35% (b) 6% (c) 7% (d) 8%
16. 16.₹4500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹4680 (b) ₹5220 (c) ₹540 (d) ₹5040
17. 17.The simple interest on ₹9500 for 2 years is ₹1330. What is the rate per year? (a) 6% (b) 14% (c) 7% (d) 8%
18. 18.₹8000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹8960 (b) ₹2880 (c) ₹11840 (d) ₹10880
19. 19.In how many years will ₹3000 earn ₹180 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
20. 20.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹2660 (b) ₹1995 (c) ₹11495 (d) ₹665
21. 21.In how many years will ₹2000 earn ₹360 simple interest at 9% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
22. 22.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹60 (b) ₹120 (c) ₹180 (d) ₹3120
23. 23.The simple interest on ₹1000 for 3 years is ₹120. What is the rate per year? (a) 3% (b) 12% (c) 4% (d) 5%
24. 24.The simple interest on ₹4000 for 5 years is ₹400. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 10%
25. 25.What is the simple interest on ₹5000 at 7% per year for 5 years? (a) ₹2100 (b) ₹1750 (c) ₹6750 (d) ₹350
26. 26.What is the simple interest on ₹4500 at 12% per year for 5 years? (a) ₹540 (b) ₹7200 (c) ₹2700 (d) ₹3240
27. 27.The simple interest on ₹2500 for 3 years is ₹150. What is the rate per year? (a) 6% (b) 1% (c) 3% (d) 2%
28. 28.What is the simple interest on ₹8000 at 3% per year for 4 years? (a) ₹8960 (b) ₹1200 (c) ₹960 (d) ₹240
29. 29.The simple interest on ₹4500 for 2 years is ₹450. What is the rate per year? (a) 10% (b) 5% (c) 6% (d) 4%
30. 30.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹400 (b) ₹2000 (c) ₹12000 (d) ₹2400
31. 31.The simple interest on ₹3000 for 5 years is ₹1350. What is the rate per year? (a) 8% (b) 10% (c) 45% (d) 9%
32. 32.The simple interest on ₹5000 for 5 years is ₹2250. What is the rate per year? (a) 45% (b) 8% (c) 10% (d) 9%
33. 33.What is the simple interest on ₹7500 at 7% per year for 3 years? (a) ₹9075 (b) ₹525 (c) ₹2100 (d) ₹1575
34. 34.₹3500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4025 (b) ₹4200 (c) ₹3675 (d) ₹525
35. 35.The simple interest on ₹5500 for 2 years is ₹550. What is the rate per year? (a) 4% (b) 6% (c) 10% (d) 5%
36. 36.What is the simple interest on ₹9500 at 11% per year for 5 years? (a) ₹1045 (b) ₹6270 (c) ₹5225 (d) ₹14725
37. 37.The simple interest on ₹5500 for 2 years is ₹1210. What is the rate per year? (a) 22% (b) 12% (c) 11% (d) 10%
38. 38.What is the simple interest on ₹8000 at 11% per year for 5 years? (a) ₹880 (b) ₹12400 (c) ₹5280 (d) ₹4400
39. 39.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 12% (b) 6% (c) 7% (d) 5%
40. 40.In how many years will ₹1500 earn ₹405 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years

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