Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 574 · 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 ₹7500 for 3 years is ₹675. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
2. 2.₹4000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5000 (b) ₹5200 (c) ₹1000 (d) ₹4200
3. 3.The simple interest on ₹4000 for 4 years is ₹1600. What is the rate per year? (a) 11% (b) 9% (c) 40% (d) 10%
4. 4.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹550 (b) ₹3325 (c) ₹3050 (d) ₹2775
5. 5.What is the simple interest on ₹2500 at 11% per year for 3 years? (a) ₹1100 (b) ₹275 (c) ₹3325 (d) ₹825
6. 6.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
7. 7.The simple interest on ₹6000 for 3 years is ₹900. What is the rate per year? (a) 5% (b) 15% (c) 6% (d) 4%
8. 8.What is the simple interest on ₹10000 at 3% per year for 4 years? (a) ₹300 (b) ₹1200 (c) ₹1500 (d) ₹11200
9. 9.In how many years will ₹2500 earn ₹1125 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
10. 10.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹10080 (b) ₹5400 (c) ₹15480 (d) ₹14400
11. 11.In how many years will ₹1000 earn ₹210 simple interest at 7% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
12. 12.₹7500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹9000 (b) ₹7800 (c) ₹9300 (d) ₹1500
13. 13.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹1120 (b) ₹160 (c) ₹40 (d) ₹120
14. 14.What is the simple interest on ₹9500 at 3% per year for 5 years? (a) ₹285 (b) ₹1425 (c) ₹10925 (d) ₹1710
15. 15.₹3500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹3710 (b) ₹4340 (c) ₹630 (d) ₹4130
16. 16.The simple interest on ₹1000 for 4 years is ₹120. What is the rate per year? (a) 2% (b) 3% (c) 12% (d) 4%
17. 17.What is the simple interest on ₹6000 at 10% per year for 5 years? (a) ₹3600 (b) ₹3000 (c) ₹600 (d) ₹9000
18. 18.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹8450 (b) ₹2600 (c) ₹1950 (d) ₹650
19. 19.₹9500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹10450 (b) ₹10260 (c) ₹760 (d) ₹9690
20. 20.What is the simple interest on ₹8000 at 6% per year for 5 years? (a) ₹10400 (b) ₹2400 (c) ₹480 (d) ₹2880
21. 21.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1120 (b) ₹120 (c) ₹1060 (d) ₹1180
22. 22.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4770 (b) ₹4635 (c) ₹270 (d) ₹4905
23. 23.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
24. 24.The simple interest on ₹5500 for 3 years is ₹1485. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 27%
25. 25.In how many years will ₹2500 earn ₹200 simple interest at 2% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
26. 26.What is the simple interest on ₹4000 at 4% per year for 5 years? (a) ₹960 (b) ₹4800 (c) ₹160 (d) ₹800
27. 27.₹8000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8800 (b) ₹8160 (c) ₹8640 (d) ₹640
28. 28.In how many years will ₹5500 earn ₹880 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
29. 29.What is the simple interest on ₹8500 at 9% per year for 4 years? (a) ₹765 (b) ₹11560 (c) ₹3060 (d) ₹3825
30. 30.What is the simple interest on ₹10000 at 6% per year for 5 years? (a) ₹3000 (b) ₹600 (c) ₹13000 (d) ₹3600
31. 31.The simple interest on ₹8000 for 3 years is ₹480. What is the rate per year? (a) 1% (b) 6% (c) 2% (d) 3%
32. 32.₹9000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹1260 (c) ₹9630 (d) ₹10890
33. 33.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 5% (b) 6% (c) 12% (d) 7%
34. 34.The simple interest on ₹9000 for 4 years is ₹3600. What is the rate per year? (a) 40% (b) 9% (c) 10% (d) 11%
35. 35.The simple interest on ₹7500 for 2 years is ₹1350. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
36. 36.The simple interest on ₹4000 for 2 years is ₹880. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
37. 37.What is the simple interest on ₹9000 at 4% per year for 5 years? (a) ₹360 (b) ₹1800 (c) ₹2160 (d) ₹10800
38. 38.In how many years will ₹3000 earn ₹1320 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
39. 39.The simple interest on ₹9500 for 4 years is ₹760. What is the rate per year? (a) 1% (b) 3% (c) 8% (d) 2%
40. 40.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years

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