Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 376 · 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 ₹5000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
2. 2.₹6500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹7280 (b) ₹6630 (c) ₹650 (d) ₹7150
3. 3.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
4. 4.The simple interest on ₹7500 for 3 years is ₹450. What is the rate per year? (a) 1% (b) 6% (c) 2% (d) 3%
5. 5.In how many years will ₹9000 earn ₹3960 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
6. 6.What is the simple interest on ₹9500 at 4% per year for 3 years? (a) ₹380 (b) ₹1520 (c) ₹1140 (d) ₹10640
7. 7.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
8. 8.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
9. 9.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
10. 10.The simple interest on ₹2000 for 3 years is ₹120. What is the rate per year? (a) 2% (b) 3% (c) 6% (d) 1%
11. 11.₹3500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3780 (b) ₹4620 (c) ₹4900 (d) ₹1120
12. 12.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹400 (b) ₹2400 (c) ₹12000 (d) ₹2000
13. 13.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
14. 14.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹280 (b) ₹4620 (c) ₹1400 (d) ₹1120
15. 15.In how many years will ₹10000 earn ₹1500 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
16. 16.The simple interest on ₹2000 for 5 years is ₹300. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
17. 17.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹700 (b) ₹4200 (c) ₹350 (d) ₹1050
18. 18.₹3500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹5250 (b) ₹3850 (c) ₹4900 (d) ₹1400
19. 19.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
20. 20.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹1500 (b) ₹4200 (c) ₹300 (d) ₹1200
21. 21.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
22. 22.What is the simple interest on ₹6000 at 10% per year for 4 years? (a) ₹2400 (b) ₹8400 (c) ₹600 (d) ₹3000
23. 23.The simple interest on ₹8000 for 3 years is ₹480. What is the rate per year? (a) 1% (b) 2% (c) 6% (d) 3%
24. 24.The simple interest on ₹9500 for 3 years is ₹1710. What is the rate per year? (a) 18% (b) 5% (c) 7% (d) 6%
25. 25.In how many years will ₹7500 earn ₹600 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
26. 26.In how many years will ₹3500 earn ₹700 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
27. 27.In how many years will ₹2000 earn ₹200 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
28. 28.₹4500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹5580 (b) ₹5400 (c) ₹4680 (d) ₹900
29. 29.₹3000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹4800 (c) ₹3300 (d) ₹4500
30. 30.What is the simple interest on ₹4000 at 4% per year for 2 years? (a) ₹320 (b) ₹4320 (c) ₹480 (d) ₹160
31. 31.₹4500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹4950 (b) ₹5850 (c) ₹5400 (d) ₹900
32. 32.The simple interest on ₹7500 for 3 years is ₹1575. What is the rate per year? (a) 7% (b) 8% (c) 21% (d) 6%
33. 33.In how many years will ₹1000 earn ₹240 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
34. 34.The simple interest on ₹6500 for 2 years is ₹650. What is the rate per year? (a) 6% (b) 4% (c) 10% (d) 5%
35. 35.The simple interest on ₹3500 for 5 years is ₹875. What is the rate per year? (a) 6% (b) 5% (c) 25% (d) 4%
36. 36.In how many years will ₹6000 earn ₹1440 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
37. 37.What is the simple interest on ₹6000 at 8% per year for 5 years? (a) ₹2880 (b) ₹2400 (c) ₹480 (d) ₹8400
38. 38.In how many years will ₹8500 earn ₹1020 simple interest at 4% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
39. 39.What is the simple interest on ₹6500 at 9% per year for 3 years? (a) ₹1755 (b) ₹2340 (c) ₹8255 (d) ₹585
40. 40.The simple interest on ₹9000 for 2 years is ₹1080. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 12%

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