Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 514 · 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.₹8000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8800 (b) ₹10400 (c) ₹11200 (d) ₹2400
2. 2.The simple interest on ₹4500 for 2 years is ₹540. What is the rate per year? (a) 6% (b) 5% (c) 12% (d) 7%
3. 3.The simple interest on ₹3000 for 4 years is ₹1320. What is the rate per year? (a) 44% (b) 11% (c) 10% (d) 12%
4. 4.The simple interest on ₹1500 for 4 years is ₹540. What is the rate per year? (a) 8% (b) 36% (c) 9% (d) 10%
5. 5.In how many years will ₹5000 earn ₹1000 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
6. 6.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 3% (b) 9% (c) 4% (d) 2%
7. 7.₹5000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹7000 (b) ₹2000 (c) ₹5400 (d) ₹7400
8. 8.In how many years will ₹3000 earn ₹1800 simple interest at 12% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
9. 9.What is the simple interest on ₹7000 at 10% per year for 5 years? (a) ₹3500 (b) ₹10500 (c) ₹700 (d) ₹4200
10. 10.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹3990 (b) ₹1320 (c) ₹330 (d) ₹990
11. 11.In how many years will ₹9500 earn ₹1900 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
12. 12.In how many years will ₹4000 earn ₹880 simple interest at 11% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
13. 13.What is the simple interest on ₹4000 at 8% per year for 2 years? (a) ₹960 (b) ₹320 (c) ₹4640 (d) ₹640
14. 14.What is the simple interest on ₹1500 at 10% per year for 2 years? (a) ₹450 (b) ₹1800 (c) ₹150 (d) ₹300
15. 15.The simple interest on ₹2000 for 3 years is ₹420. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
16. 16.The simple interest on ₹2000 for 5 years is ₹400. What is the rate per year? (a) 5% (b) 4% (c) 20% (d) 3%
17. 17.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹9540 (c) ₹10080 (d) ₹10620
18. 18.In how many years will ₹9000 earn ₹2430 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
19. 19.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹10600 (b) ₹300 (c) ₹900 (d) ₹600
20. 20.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 30%
21. 21.₹2500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3250 (b) ₹625 (c) ₹2625 (d) ₹3125
22. 22.What is the simple interest on ₹2000 at 2% per year for 4 years? (a) ₹40 (b) ₹2160 (c) ₹160 (d) ₹200
23. 23.In how many years will ₹6500 earn ₹1950 simple interest at 6% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
24. 24.₹8500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10200 (b) ₹8925 (c) ₹10625 (d) ₹1700
25. 25.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8060 (b) ₹7800 (c) ₹1300 (d) ₹6760
26. 26.The simple interest on ₹8000 for 4 years is ₹1280. What is the rate per year? (a) 16% (b) 5% (c) 4% (d) 3%
27. 27.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹3920 (c) ₹3815 (d) ₹3605
28. 28.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
29. 29.In how many years will ₹4000 earn ₹400 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
30. 30.₹8500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10030 (b) ₹10795 (c) ₹1530 (d) ₹9265
31. 31.What is the simple interest on ₹6500 at 7% per year for 3 years? (a) ₹7865 (b) ₹1820 (c) ₹1365 (d) ₹455
32. 32.What is the simple interest on ₹8000 at 11% per year for 4 years? (a) ₹3520 (b) ₹11520 (c) ₹880 (d) ₹4400
33. 33.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹240 (b) ₹480 (c) ₹3480 (d) ₹720
34. 34.What is the simple interest on ₹4000 at 6% per year for 5 years? (a) ₹1200 (b) ₹1440 (c) ₹240 (d) ₹5200
35. 35.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 8% (b) 6% (c) 21% (d) 7%
36. 36.The simple interest on ₹8000 for 2 years is ₹1440. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 18%
37. 37.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
38. 38.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹1280 (b) ₹1600 (c) ₹9280 (d) ₹320
39. 39.What is the simple interest on ₹5000 at 9% per year for 4 years? (a) ₹6800 (b) ₹450 (c) ₹1800 (d) ₹2250
40. 40.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year

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