Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 889 · 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 ₹4500 for 3 years is ₹1485. What is the rate per year? (a) 11% (b) 33% (c) 10% (d) 12%
2. 2.In how many years will ₹1500 earn ₹150 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
3. 3.₹2000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹3080 (c) ₹2900 (d) ₹2180
4. 4.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 6%
5. 5.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹3360 (b) ₹90 (c) ₹360 (d) ₹450
6. 6.₹9500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹14250 (b) ₹10450 (c) ₹13300 (d) ₹3800
7. 7.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
8. 8.In how many years will ₹9000 earn ₹2700 simple interest at 10% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
9. 9.In how many years will ₹5000 earn ₹300 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
10. 10.What is the simple interest on ₹1000 at 10% per year for 2 years? (a) ₹200 (b) ₹1200 (c) ₹300 (d) ₹100
11. 11.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 8% (c) 4% (d) 5%
12. 12.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹80 (b) ₹20 (c) ₹1080 (d) ₹100
13. 13.In how many years will ₹2500 earn ₹600 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
14. 14.The simple interest on ₹5500 for 5 years is ₹3300. What is the rate per year? (a) 13% (b) 60% (c) 11% (d) 12%
15. 15.The simple interest on ₹3500 for 2 years is ₹350. What is the rate per year? (a) 10% (b) 6% (c) 5% (d) 4%
16. 16.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹1400 (c) ₹5680 (d) ₹4280
17. 17.What is the simple interest on ₹7000 at 4% per year for 4 years? (a) ₹1400 (b) ₹280 (c) ₹8120 (d) ₹1120
18. 18.₹5000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5600 (b) ₹600 (c) ₹5800 (d) ₹5200
19. 19.₹4000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹4400 (b) ₹4080 (c) ₹4320 (d) ₹320
20. 20.In how many years will ₹9000 earn ₹1620 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
21. 21.In how many years will ₹10000 earn ₹2400 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
22. 22.What is the simple interest on ₹3500 at 8% per year for 5 years? (a) ₹1680 (b) ₹4900 (c) ₹280 (d) ₹1400
23. 23.₹5500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹7480 (b) ₹7150 (c) ₹1650 (d) ₹5830
24. 24.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹855 (b) ₹4275 (c) ₹13775 (d) ₹5130
25. 25.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 10%
26. 26.What is the simple interest on ₹6500 at 12% per year for 2 years? (a) ₹2340 (b) ₹1560 (c) ₹8060 (d) ₹780
27. 27.₹2000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹2220 (c) ₹3100 (d) ₹880
28. 28.In how many years will ₹3500 earn ₹1120 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
29. 29.The simple interest on ₹3500 for 5 years is ₹1400. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
30. 30.In how many years will ₹3000 earn ₹1200 simple interest at 10% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
31. 31.₹8500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4080 (b) ₹9520 (c) ₹13600 (d) ₹12580
32. 32.What is the simple interest on ₹8500 at 6% per year for 4 years? (a) ₹2550 (b) ₹2040 (c) ₹10540 (d) ₹510
33. 33.In how many years will ₹6500 earn ₹1950 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
34. 34.The simple interest on ₹6000 for 3 years is ₹1800. What is the rate per year? (a) 10% (b) 11% (c) 30% (d) 9%
35. 35.What is the simple interest on ₹7000 at 2% per year for 5 years? (a) ₹7700 (b) ₹140 (c) ₹840 (d) ₹700
36. 36.What is the simple interest on ₹1000 at 12% per year for 2 years? (a) ₹1240 (b) ₹240 (c) ₹360 (d) ₹120
37. 37.The simple interest on ₹9000 for 4 years is ₹720. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
38. 38.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 40%
39. 39.In how many years will ₹2000 earn ₹1200 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
40. 40.What is the simple interest on ₹2500 at 5% per year for 5 years? (a) ₹3125 (b) ₹125 (c) ₹750 (d) ₹625

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