Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 781 · 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.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8800 (b) ₹3200 (c) ₹11200 (d) ₹12000
2. 2.In how many years will ₹8000 earn ₹480 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
3. 3.₹2500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹2575 (b) ₹150 (c) ₹2650 (d) ₹2725
4. 4.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹280 (b) ₹7560 (c) ₹560 (d) ₹840
5. 5.In how many years will ₹7000 earn ₹840 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
6. 6.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 36% (b) 12% (c) 13% (d) 11%
7. 7.In how many years will ₹7000 earn ₹1890 simple interest at 9% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
8. 8.₹5500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1540 (b) ₹5885 (c) ₹7425 (d) ₹7040
9. 9.In how many years will ₹4000 earn ₹1200 simple interest at 10% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
10. 10.What is the simple interest on ₹8500 at 12% per year for 3 years? (a) ₹11560 (b) ₹1020 (c) ₹3060 (d) ₹4080
11. 11.The simple interest on ₹6000 for 4 years is ₹960. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 16%
12. 12.In how many years will ₹3000 earn ₹270 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
13. 13.What is the simple interest on ₹3500 at 12% per year for 2 years? (a) ₹420 (b) ₹840 (c) ₹1260 (d) ₹4340
14. 14.In how many years will ₹9000 earn ₹4500 simple interest at 10% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
15. 15.What is the simple interest on ₹10000 at 11% per year for 4 years? (a) ₹14400 (b) ₹5500 (c) ₹1100 (d) ₹4400
16. 16.What is the simple interest on ₹6000 at 10% per year for 2 years? (a) ₹600 (b) ₹1800 (c) ₹1200 (d) ₹7200
17. 17.The simple interest on ₹9500 for 5 years is ₹4275. What is the rate per year? (a) 45% (b) 8% (c) 10% (d) 9%
18. 18.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹6200 (b) ₹5760 (c) ₹1760 (d) ₹4440
19. 19.The simple interest on ₹2500 for 3 years is ₹225. What is the rate per year? (a) 9% (b) 4% (c) 2% (d) 3%
20. 20.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹360 (b) ₹1440 (c) ₹1080 (d) ₹5580
21. 21.₹10000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹4500 (b) ₹15400 (c) ₹14500 (d) ₹10900
22. 22.What is the simple interest on ₹7500 at 11% per year for 3 years? (a) ₹825 (b) ₹9975 (c) ₹2475 (d) ₹3300
23. 23.The simple interest on ₹2500 for 4 years is ₹500. What is the rate per year? (a) 20% (b) 6% (c) 5% (d) 4%
24. 24.The simple interest on ₹4000 for 2 years is ₹880. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 22%
25. 25.The simple interest on ₹9000 for 3 years is ₹1350. What is the rate per year? (a) 15% (b) 6% (c) 4% (d) 5%
26. 26.₹6000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7200 (b) ₹6300 (c) ₹6900 (d) ₹900
27. 27.In how many years will ₹5500 earn ₹2750 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
28. 28.What is the simple interest on ₹7500 at 10% per year for 3 years? (a) ₹2250 (b) ₹3000 (c) ₹750 (d) ₹9750
29. 29.The simple interest on ₹7500 for 2 years is ₹1350. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 18%
30. 30.In how many years will ₹8500 earn ₹3825 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
31. 31.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹2080 (b) ₹120 (c) ₹40 (d) ₹80
32. 32.What is the simple interest on ₹10000 at 2% per year for 5 years? (a) ₹11000 (b) ₹200 (c) ₹1200 (d) ₹1000
33. 33.What is the simple interest on ₹10000 at 11% per year for 2 years? (a) ₹2200 (b) ₹12200 (c) ₹1100 (d) ₹3300
34. 34.In how many years will ₹7500 earn ₹1500 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
35. 35.In how many years will ₹6500 earn ₹1040 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
36. 36.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 10% (b) 4% (c) 6% (d) 5%
37. 37.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6200 (b) ₹4440 (c) ₹2200 (d) ₹6640
38. 38.What is the simple interest on ₹1000 at 10% per year for 5 years? (a) ₹100 (b) ₹1500 (c) ₹600 (d) ₹500
39. 39.In how many years will ₹5500 earn ₹825 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
40. 40.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%

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