Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 197 · 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.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
2. 2.₹6000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹6660 (b) ₹1980 (c) ₹8640 (d) ₹7980
3. 3.The simple interest on ₹10000 for 5 years is ₹1000. What is the rate per year? (a) 2% (b) 1% (c) 10% (d) 3%
4. 4.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹11800 (b) ₹1800 (c) ₹12700 (d) ₹10900
5. 5.What is the simple interest on ₹10000 at 4% per year for 4 years? (a) ₹2000 (b) ₹400 (c) ₹11600 (d) ₹1600
6. 6.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
7. 7.What is the simple interest on ₹3500 at 10% per year for 3 years? (a) ₹1050 (b) ₹1400 (c) ₹4550 (d) ₹350
8. 8.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1300 (b) ₹7800 (c) ₹8060 (d) ₹6760
9. 9.In how many years will ₹8000 earn ₹1600 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
10. 10.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹1950 (c) ₹1650 (d) ₹2100
11. 11.In how many years will ₹7000 earn ₹980 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
12. 12.₹3000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹3180 (b) ₹3540 (c) ₹540 (d) ₹3720
13. 13.What is the simple interest on ₹2000 at 8% per year for 5 years? (a) ₹960 (b) ₹2800 (c) ₹800 (d) ₹160
14. 14.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
15. 15.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹200 (b) ₹50 (c) ₹2650 (d) ₹150
16. 16.The simple interest on ₹3000 for 2 years is ₹540. What is the rate per year? (a) 8% (b) 18% (c) 10% (d) 9%
17. 17.The simple interest on ₹2500 for 4 years is ₹200. What is the rate per year? (a) 2% (b) 8% (c) 1% (d) 3%
18. 18.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹630 (b) ₹210 (c) ₹3920 (d) ₹420
19. 19.The simple interest on ₹7500 for 2 years is ₹1200. What is the rate per year? (a) 7% (b) 9% (c) 16% (d) 8%
20. 20.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
21. 21.In how many years will ₹1000 earn ₹150 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
22. 22.In how many years will ₹5000 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
23. 23.What is the simple interest on ₹7500 at 4% per year for 5 years? (a) ₹300 (b) ₹9000 (c) ₹1500 (d) ₹1800
24. 24.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
25. 25.The simple interest on ₹6000 for 4 years is ₹1920. What is the rate per year? (a) 32% (b) 7% (c) 9% (d) 8%
26. 26.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 28%
27. 27.What is the simple interest on ₹9500 at 9% per year for 3 years? (a) ₹12065 (b) ₹2565 (c) ₹855 (d) ₹3420
28. 28.The simple interest on ₹7500 for 3 years is ₹1350. What is the rate per year? (a) 6% (b) 7% (c) 18% (d) 5%
29. 29.In how many years will ₹2000 earn ₹700 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
30. 30.The simple interest on ₹6500 for 5 years is ₹650. What is the rate per year? (a) 1% (b) 3% (c) 10% (d) 2%
31. 31.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
32. 32.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹180 (b) ₹3120 (c) ₹120 (d) ₹60
33. 33.₹6000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹960 (b) ₹7200 (c) ₹6960 (d) ₹6240
34. 34.The simple interest on ₹6000 for 5 years is ₹3300. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 55%
35. 35.What is the simple interest on ₹2500 at 7% per year for 3 years? (a) ₹3025 (b) ₹700 (c) ₹525 (d) ₹175
36. 36.What is the simple interest on ₹7000 at 6% per year for 5 years? (a) ₹420 (b) ₹2520 (c) ₹2100 (d) ₹9100
37. 37.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹1090 (b) ₹90 (c) ₹30 (d) ₹120
38. 38.₹4500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4770 (b) ₹4680 (c) ₹180 (d) ₹4590
39. 39.In how many years will ₹5000 earn ₹900 simple interest at 9% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
40. 40.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹7725 (b) ₹7950 (c) ₹8175 (d) ₹450

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