Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 54 · 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.What is the simple interest on ₹3500 at 4% per year for 4 years? (a) ₹560 (b) ₹140 (c) ₹700 (d) ₹4060
2. 2.The simple interest on ₹2000 for 5 years is ₹500. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 25%
3. 3.In how many years will ₹2500 earn ₹1100 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
4. 4.In how many years will ₹4500 earn ₹1485 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
5. 5.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹1200 (b) ₹3960 (c) ₹240 (d) ₹960
6. 6.The simple interest on ₹7000 for 3 years is ₹2520. What is the rate per year? (a) 11% (b) 36% (c) 12% (d) 13%
7. 7.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
8. 8.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
9. 9.₹10000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹11100 (c) ₹13300 (d) ₹12200
10. 10.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹1920 (b) ₹420 (c) ₹105 (d) ₹525
11. 11.What is the simple interest on ₹3500 at 9% per year for 3 years? (a) ₹1260 (b) ₹945 (c) ₹315 (d) ₹4445
12. 12.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹9450 (b) ₹10800 (c) ₹11250 (d) ₹1800
13. 13.The simple interest on ₹10000 for 3 years is ₹1500. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 15%
14. 14.In how many years will ₹9000 earn ₹1800 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
15. 15.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5665 (b) ₹6160 (c) ₹495 (d) ₹5995
16. 16.In how many years will ₹7500 earn ₹1500 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
17. 17.In how many years will ₹5500 earn ₹2420 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
18. 18.₹9500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹10260 (b) ₹570 (c) ₹10070 (d) ₹9690
19. 19.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
20. 20.₹2000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹2300 (b) ₹300 (c) ₹2060 (d) ₹2360
21. 21.₹7500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9075 (b) ₹8025 (c) ₹8550 (d) ₹1050
22. 22.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹135 (b) ₹5040 (c) ₹540 (d) ₹675
23. 23.The simple interest on ₹1000 for 5 years is ₹150. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
24. 24.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3850 (b) ₹3675 (c) ₹350 (d) ₹4025
25. 25.In how many years will ₹5500 earn ₹550 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
26. 26.₹8000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹10880 (b) ₹11600 (c) ₹2880 (d) ₹8720
27. 27.In how many years will ₹10000 earn ₹1600 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
28. 28.The simple interest on ₹2500 for 5 years is ₹1375. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 55%
29. 29.What is the simple interest on ₹3500 at 12% per year for 2 years? (a) ₹1260 (b) ₹420 (c) ₹4340 (d) ₹840
30. 30.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 20% (b) 6% (c) 4% (d) 5%
31. 31.The simple interest on ₹5000 for 3 years is ₹750. What is the rate per year? (a) 6% (b) 15% (c) 5% (d) 4%
32. 32.The simple interest on ₹1500 for 3 years is ₹135. What is the rate per year? (a) 2% (b) 3% (c) 9% (d) 4%
33. 33.What is the simple interest on ₹1000 at 4% per year for 4 years? (a) ₹1160 (b) ₹160 (c) ₹200 (d) ₹40
34. 34.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹1950 (c) ₹1650 (d) ₹2100
35. 35.The simple interest on ₹7000 for 2 years is ₹1120. What is the rate per year? (a) 8% (b) 16% (c) 9% (d) 7%
36. 36.What is the simple interest on ₹8500 at 8% per year for 2 years? (a) ₹2040 (b) ₹1360 (c) ₹680 (d) ₹9860
37. 37.In how many years will ₹3500 earn ₹210 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
38. 38.What is the simple interest on ₹8000 at 7% per year for 5 years? (a) ₹10800 (b) ₹3360 (c) ₹2800 (d) ₹560
39. 39.₹8500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹9350 (b) ₹9520 (c) ₹850 (d) ₹8670
40. 40.What is the simple interest on ₹6000 at 3% per year for 5 years? (a) ₹900 (b) ₹6900 (c) ₹180 (d) ₹1080

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