Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 591 · 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 ₹2475. What is the rate per year? (a) 33% (b) 11% (c) 10% (d) 12%
2. 2.In how many years will ₹4000 earn ₹640 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
3. 3.₹2500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3250 (b) ₹2750 (c) ₹3000 (d) ₹500
4. 4.In how many years will ₹5000 earn ₹2200 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
5. 5.What is the simple interest on ₹4000 at 10% per year for 2 years? (a) ₹800 (b) ₹4800 (c) ₹400 (d) ₹1200
6. 6.What is the simple interest on ₹5500 at 8% per year for 4 years? (a) ₹1760 (b) ₹2200 (c) ₹440 (d) ₹7260
7. 7.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
8. 8.In how many years will ₹5000 earn ₹1400 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
9. 9.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹1080 (c) ₹810 (d) ₹9810
10. 10.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1300 (b) ₹1100 (c) ₹1200 (d) ₹200
11. 11.In how many years will ₹1000 earn ₹300 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
12. 12.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹2725 (c) ₹225 (d) ₹2575
13. 13.The simple interest on ₹2000 for 5 years is ₹1000. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 50%
14. 14.₹6500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7475 (b) ₹7800 (c) ₹6825 (d) ₹975
15. 15.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹360 (b) ₹180 (c) ₹1860 (d) ₹540
16. 16.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2480 (b) ₹360 (c) ₹2360 (d) ₹2120
17. 17.What is the simple interest on ₹1000 at 10% per year for 5 years? (a) ₹500 (b) ₹100 (c) ₹600 (d) ₹1500
18. 18.What is the simple interest on ₹1000 at 6% per year for 2 years? (a) ₹1120 (b) ₹180 (c) ₹120 (d) ₹60
19. 19.₹7000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1260 (b) ₹8890 (c) ₹8260 (d) ₹7630
20. 20.The simple interest on ₹8000 for 3 years is ₹2640. What is the rate per year? (a) 33% (b) 12% (c) 11% (d) 10%
21. 21.In how many years will ₹7500 earn ₹750 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
22. 22.The simple interest on ₹9500 for 2 years is ₹950. What is the rate per year? (a) 4% (b) 6% (c) 10% (d) 5%
23. 23.In how many years will ₹7500 earn ₹2100 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
24. 24.The simple interest on ₹7000 for 3 years is ₹1050. What is the rate per year? (a) 4% (b) 5% (c) 15% (d) 6%
25. 25.The simple interest on ₹6000 for 4 years is ₹960. What is the rate per year? (a) 4% (b) 5% (c) 3% (d) 16%
26. 26.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3100 (b) ₹2900 (c) ₹2700 (d) ₹400
27. 27.The simple interest on ₹4500 for 3 years is ₹405. What is the rate per year? (a) 4% (b) 9% (c) 2% (d) 3%
28. 28.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹3480 (b) ₹480 (c) ₹240 (d) ₹720
29. 29.The simple interest on ₹8000 for 5 years is ₹3600. What is the rate per year? (a) 8% (b) 45% (c) 10% (d) 9%
30. 30.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 18% (b) 7% (c) 5% (d) 6%
31. 31.₹2500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3875 (b) ₹2775 (c) ₹3600 (d) ₹1100
32. 32.₹4500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹6300 (b) ₹6660 (c) ₹1800 (d) ₹4860
33. 33.What is the simple interest on ₹8000 at 9% per year for 3 years? (a) ₹10160 (b) ₹720 (c) ₹2880 (d) ₹2160
34. 34.What is the simple interest on ₹5500 at 11% per year for 4 years? (a) ₹2420 (b) ₹3025 (c) ₹7920 (d) ₹605
35. 35.₹6000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹6960 (b) ₹960 (c) ₹7440 (d) ₹6480
36. 36.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5995 (b) ₹6985 (c) ₹6490 (d) ₹990
37. 37.The simple interest on ₹4500 for 4 years is ₹1440. What is the rate per year? (a) 32% (b) 7% (c) 8% (d) 9%
38. 38.The simple interest on ₹8000 for 2 years is ₹1440. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
39. 39.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
40. 40.What is the simple interest on ₹1000 at 7% per year for 5 years? (a) ₹70 (b) ₹420 (c) ₹1350 (d) ₹350

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