Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 140 · 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 ₹6000 for 5 years is ₹2100. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 35%
2. 2.In how many years will ₹5000 earn ₹1350 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
3. 3.₹6000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2100 (b) ₹8520 (c) ₹6420 (d) ₹8100
4. 4.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹240 (b) ₹80 (c) ₹160 (d) ₹4160
5. 5.In how many years will ₹1000 earn ₹240 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
6. 6.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹3120 (c) ₹3600 (d) ₹3480
7. 7.What is the simple interest on ₹4500 at 7% per year for 3 years? (a) ₹1260 (b) ₹945 (c) ₹315 (d) ₹5445
8. 8.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
9. 9.In how many years will ₹9500 earn ₹3800 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
10. 10.₹1000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹480 (c) ₹1600 (d) ₹1480
11. 11.What is the simple interest on ₹5000 at 8% per year for 3 years? (a) ₹6200 (b) ₹400 (c) ₹1200 (d) ₹1600
12. 12.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹660 (b) ₹5830 (c) ₹6490 (d) ₹6160
13. 13.The simple interest on ₹4000 for 5 years is ₹2400. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 60%
14. 14.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 4% (b) 8% (c) 5% (d) 3%
15. 15.In how many years will ₹8500 earn ₹3060 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
16. 16.₹4500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹4590 (b) ₹450 (c) ₹5040 (d) ₹4950
17. 17.The simple interest on ₹8000 for 5 years is ₹2000. What is the rate per year? (a) 6% (b) 5% (c) 25% (d) 4%
18. 18.₹1500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹360 (b) ₹1620 (c) ₹1860 (d) ₹1980
19. 19.In how many years will ₹2000 earn ₹360 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
20. 20.In how many years will ₹6500 earn ₹390 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
21. 21.In how many years will ₹2500 earn ₹200 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
22. 22.What is the simple interest on ₹7000 at 5% per year for 4 years? (a) ₹8400 (b) ₹1400 (c) ₹1750 (d) ₹350
23. 23.What is the simple interest on ₹7000 at 10% per year for 3 years? (a) ₹2100 (b) ₹9100 (c) ₹2800 (d) ₹700
24. 24.What is the simple interest on ₹9500 at 8% per year for 4 years? (a) ₹3800 (b) ₹760 (c) ₹12540 (d) ₹3040
25. 25.The simple interest on ₹9000 for 2 years is ₹1440. What is the rate per year? (a) 8% (b) 16% (c) 9% (d) 7%
26. 26.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
27. 27.What is the simple interest on ₹6000 at 6% per year for 2 years? (a) ₹6720 (b) ₹720 (c) ₹360 (d) ₹1080
28. 28.In how many years will ₹5500 earn ₹990 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
29. 29.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹450 (b) ₹5900 (c) ₹1350 (d) ₹900
30. 30.In how many years will ₹6000 earn ₹720 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
31. 31.The simple interest on ₹2000 for 5 years is ₹900. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 45%
32. 32.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹2650 (b) ₹150 (c) ₹50 (d) ₹200
33. 33.₹10000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹14800 (b) ₹11200 (c) ₹13600 (d) ₹3600
34. 34.₹6500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹7670 (b) ₹1170 (c) ₹8255 (d) ₹7085
35. 35.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹2500 (b) ₹3000 (c) ₹500 (d) ₹7500
36. 36.In how many years will ₹8500 earn ₹1700 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
37. 37.In how many years will ₹5500 earn ₹2475 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
38. 38.₹9000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹9540 (b) ₹11160 (c) ₹2160 (d) ₹11700
39. 39.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹5600 (c) ₹5450 (d) ₹5150
40. 40.₹2000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹2120 (b) ₹480 (c) ₹2480 (d) ₹2600

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