Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 621 · 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.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3480 (b) ₹3600 (c) ₹480 (d) ₹3120
2. 2.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5665 (b) ₹5995 (c) ₹495 (d) ₹6160
3. 3.The simple interest on ₹4500 for 3 years is ₹405. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 9%
4. 4.The simple interest on ₹9500 for 5 years is ₹2850. What is the rate per year? (a) 6% (b) 7% (c) 30% (d) 5%
5. 5.The simple interest on ₹2500 for 4 years is ₹1000. What is the rate per year? (a) 9% (b) 40% (c) 10% (d) 11%
6. 6.The simple interest on ₹5500 for 4 years is ₹1320. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 24%
7. 7.The simple interest on ₹1500 for 2 years is ₹60. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 1%
8. 8.In how many years will ₹1000 earn ₹100 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
9. 9.The simple interest on ₹4500 for 3 years is ₹810. What is the rate per year? (a) 18% (b) 7% (c) 5% (d) 6%
10. 10.₹9500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹14060 (b) ₹3420 (c) ₹12920 (d) ₹10640
11. 11.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 28% (b) 8% (c) 7% (d) 6%
12. 12.In how many years will ₹6500 earn ₹3900 simple interest at 12% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
13. 13.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹2900 (c) ₹2700 (d) ₹3100
14. 14.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹3605 (c) ₹3815 (d) ₹3920
15. 15.The simple interest on ₹3500 for 3 years is ₹1155. What is the rate per year? (a) 33% (b) 12% (c) 10% (d) 11%
16. 16.What is the simple interest on ₹3000 at 4% per year for 3 years? (a) ₹480 (b) ₹120 (c) ₹3360 (d) ₹360
17. 17.₹1000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1320 (b) ₹1080 (c) ₹240 (d) ₹1240
18. 18.In how many years will ₹5000 earn ₹750 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
19. 19.What is the simple interest on ₹8000 at 12% per year for 4 years? (a) ₹960 (b) ₹4800 (c) ₹3840 (d) ₹11840
20. 20.₹3500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹350 (b) ₹3850 (c) ₹3920 (d) ₹3570
21. 21.What is the simple interest on ₹7000 at 11% per year for 2 years? (a) ₹1540 (b) ₹770 (c) ₹2310 (d) ₹8540
22. 22.What is the simple interest on ₹1000 at 7% per year for 2 years? (a) ₹1140 (b) ₹210 (c) ₹140 (d) ₹70
23. 23.What is the simple interest on ₹1500 at 5% per year for 2 years? (a) ₹150 (b) ₹1650 (c) ₹75 (d) ₹225
24. 24.In how many years will ₹5000 earn ₹900 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
25. 25.The simple interest on ₹1000 for 4 years is ₹480. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 48%
26. 26.The simple interest on ₹6000 for 2 years is ₹600. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 10%
27. 27.₹9500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹11210 (b) ₹10070 (c) ₹10640 (d) ₹1140
28. 28.In how many years will ₹5500 earn ₹495 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
29. 29.In how many years will ₹4500 earn ₹360 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
30. 30.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹180 (b) ₹720 (c) ₹900 (d) ₹5220
31. 31.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹8800 (b) ₹10400 (c) ₹9600 (d) ₹1600
32. 32.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 5% (c) 8% (d) 4%
33. 33.In how many years will ₹8000 earn ₹2000 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
34. 34.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹240 (b) ₹720 (c) ₹480 (d) ₹8480
35. 35.What is the simple interest on ₹2500 at 5% per year for 5 years? (a) ₹625 (b) ₹750 (c) ₹3125 (d) ₹125
36. 36.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹630 (b) ₹420 (c) ₹3920 (d) ₹210
37. 37.The simple interest on ₹1500 for 4 years is ₹420. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
38. 38.What is the simple interest on ₹8500 at 10% per year for 3 years? (a) ₹3400 (b) ₹2550 (c) ₹11050 (d) ₹850
39. 39.What is the simple interest on ₹7500 at 9% per year for 3 years? (a) ₹2025 (b) ₹675 (c) ₹2700 (d) ₹9525
40. 40.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹550 (b) ₹3050 (c) ₹275 (d) ₹825

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