Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 571 · 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.₹3500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4200 (b) ₹3675 (c) ₹525 (d) ₹4025
2. 2.₹8000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹8720 (b) ₹3600 (c) ₹12320 (d) ₹11600
3. 3.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 8% (b) 5% (c) 3% (d) 4%
4. 4.What is the simple interest on ₹5000 at 8% per year for 5 years? (a) ₹2000 (b) ₹2400 (c) ₹400 (d) ₹7000
5. 5.The simple interest on ₹9500 for 3 years is ₹1995. What is the rate per year? (a) 8% (b) 6% (c) 21% (d) 7%
6. 6.₹4500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹4860 (c) ₹6660 (d) ₹6300
7. 7.The simple interest on ₹2500 for 4 years is ₹1200. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 48%
8. 8.What is the simple interest on ₹8500 at 7% per year for 2 years? (a) ₹1785 (b) ₹1190 (c) ₹595 (d) ₹9690
9. 9.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹480 (b) ₹720 (c) ₹240 (d) ₹8480
10. 10.₹3500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3780 (b) ₹280 (c) ₹3850 (d) ₹3570
11. 11.In how many years will ₹4000 earn ₹960 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
12. 12.In how many years will ₹8000 earn ₹1680 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
13. 13.In how many years will ₹10000 earn ₹2400 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
14. 14.What is the simple interest on ₹1000 at 12% per year for 2 years? (a) ₹1240 (b) ₹240 (c) ₹120 (d) ₹360
15. 15.The simple interest on ₹3500 for 5 years is ₹2100. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 60%
16. 16.What is the simple interest on ₹4500 at 9% per year for 4 years? (a) ₹6120 (b) ₹1620 (c) ₹2025 (d) ₹405
17. 17.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹450 (b) ₹11250 (c) ₹2700 (d) ₹2250
18. 18.In how many years will ₹3000 earn ₹660 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
19. 19.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹660 (b) ₹2440 (c) ₹440 (d) ₹220
20. 20.The simple interest on ₹3000 for 5 years is ₹1050. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 35%
21. 21.In how many years will ₹6000 earn ₹600 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
22. 22.₹1500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹450 (b) ₹1950 (c) ₹2040 (d) ₹1590
23. 23.The simple interest on ₹9500 for 4 years is ₹2660. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 28%
24. 24.What is the simple interest on ₹8500 at 7% per year for 3 years? (a) ₹1785 (b) ₹595 (c) ₹10285 (d) ₹2380
25. 25.The simple interest on ₹4500 for 4 years is ₹1260. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
26. 26.What is the simple interest on ₹7000 at 2% per year for 2 years? (a) ₹140 (b) ₹420 (c) ₹280 (d) ₹7280
27. 27.₹7000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8260 (b) ₹1050 (c) ₹8050 (d) ₹7210
28. 28.What is the simple interest on ₹4000 at 4% per year for 2 years? (a) ₹480 (b) ₹320 (c) ₹4320 (d) ₹160
29. 29.₹4500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹900 (b) ₹5400 (c) ₹4950 (d) ₹5850
30. 30.₹6000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹6360 (b) ₹1080 (c) ₹7080 (d) ₹7440
31. 31.In how many years will ₹1000 earn ₹160 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
32. 32.₹5000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹5700 (b) ₹5350 (c) ₹700 (d) ₹6050
33. 33.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹840 (b) ₹3780 (c) ₹4620 (d) ₹4340
34. 34.₹6500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹8840 (b) ₹7280 (c) ₹8060 (d) ₹1560
35. 35.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5300 (b) ₹5150 (c) ₹5450 (d) ₹300
36. 36.The simple interest on ₹2000 for 5 years is ₹500. What is the rate per year? (a) 25% (b) 4% (c) 6% (d) 5%
37. 37.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
38. 38.₹9500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10355 (b) ₹1710 (c) ₹12065 (d) ₹11210
39. 39.₹4500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹5490 (b) ₹4995 (c) ₹990 (d) ₹5985
40. 40.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹1620 (b) ₹180 (c) ₹120 (d) ₹60

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