Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 609 · 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.₹1000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1270 (b) ₹270 (c) ₹1090 (d) ₹1360
2. 2.The simple interest on ₹9500 for 3 years is ₹1995. What is the rate per year? (a) 6% (b) 21% (c) 7% (d) 8%
3. 3.What is the simple interest on ₹6500 at 5% per year for 2 years? (a) ₹975 (b) ₹7150 (c) ₹325 (d) ₹650
4. 4.What is the simple interest on ₹7500 at 9% per year for 4 years? (a) ₹3375 (b) ₹10200 (c) ₹675 (d) ₹2700
5. 5.What is the simple interest on ₹2000 at 6% per year for 4 years? (a) ₹600 (b) ₹480 (c) ₹120 (d) ₹2480
6. 6.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
7. 7.In how many years will ₹5000 earn ₹600 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
8. 8.₹7000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹630 (b) ₹7840 (c) ₹7210 (d) ₹7630
9. 9.In how many years will ₹2000 earn ₹960 simple interest at 12% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
10. 10.What is the simple interest on ₹6000 at 9% per year for 4 years? (a) ₹540 (b) ₹2160 (c) ₹2700 (d) ₹8160
11. 11.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹4200 (b) ₹300 (c) ₹1500 (d) ₹1200
12. 12.The simple interest on ₹10000 for 3 years is ₹1800. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%
13. 13.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹855 (b) ₹2565 (c) ₹11210 (d) ₹1710
14. 14.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9280 (b) ₹9600 (c) ₹1280 (d) ₹8320
15. 15.₹3000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹4200 (b) ₹4440 (c) ₹3240 (d) ₹1200
16. 16.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹300 (b) ₹225 (c) ₹1725 (d) ₹75
17. 17.The simple interest on ₹1000 for 2 years is ₹60. What is the rate per year? (a) 2% (b) 3% (c) 6% (d) 4%
18. 18.The simple interest on ₹9500 for 4 years is ₹2660. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 28%
19. 19.₹1000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹1110 (b) ₹550 (c) ₹1660 (d) ₹1550
20. 20.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹350 (b) ₹1050 (c) ₹700 (d) ₹4200
21. 21.₹2500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4150 (b) ₹1375 (c) ₹2775 (d) ₹3875
22. 22.₹2500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹2875 (b) ₹2625 (c) ₹375 (d) ₹3000
23. 23.₹4500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹4860 (b) ₹6300 (c) ₹1440 (d) ₹5940
24. 24.The simple interest on ₹6500 for 3 years is ₹780. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 12%
25. 25.What is the simple interest on ₹7500 at 7% per year for 4 years? (a) ₹9600 (b) ₹2625 (c) ₹2100 (d) ₹525
26. 26.In how many years will ₹8000 earn ₹1920 simple interest at 6% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
27. 27.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹420 (b) ₹1920 (c) ₹525 (d) ₹105
28. 28.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
29. 29.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹4130 (b) ₹630 (c) ₹315 (d) ₹945
30. 30.In how many years will ₹7000 earn ₹1120 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
31. 31.What is the simple interest on ₹6000 at 5% per year for 2 years? (a) ₹600 (b) ₹900 (c) ₹6600 (d) ₹300
32. 32.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹2700 (c) ₹3500 (d) ₹3300
33. 33.In how many years will ₹4500 earn ₹1350 simple interest at 6% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
34. 34.In how many years will ₹5000 earn ₹2000 simple interest at 8% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
35. 35.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹90 (b) ₹540 (c) ₹4950 (d) ₹450
36. 36.In how many years will ₹9000 earn ₹1080 simple interest at 3% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
37. 37.In how many years will ₹1000 earn ₹120 simple interest at 3% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
38. 38.What is the simple interest on ₹5500 at 4% per year for 5 years? (a) ₹1100 (b) ₹220 (c) ₹6600 (d) ₹1320
39. 39.The simple interest on ₹8000 for 4 years is ₹2880. What is the rate per year? (a) 10% (b) 9% (c) 36% (d) 8%
40. 40.The simple interest on ₹7000 for 3 years is ₹420. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 6%

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