Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 107 · 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.₹2000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹3440 (b) ₹1200 (c) ₹3200 (d) ₹2240
2. 2.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹720 (b) ₹5220 (c) ₹180 (d) ₹900
3. 3.In how many years will ₹2000 earn ₹160 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
4. 4.In how many years will ₹1500 earn ₹90 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
5. 5.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3050 (b) ₹2775 (c) ₹3325 (d) ₹550
6. 6.₹9000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹9720 (b) ₹9360 (c) ₹720 (d) ₹10080
7. 7.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹2725 (b) ₹450 (c) ₹3175 (d) ₹2950
8. 8.The simple interest on ₹4000 for 2 years is ₹240. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
9. 9.What is the simple interest on ₹9000 at 12% per year for 3 years? (a) ₹12240 (b) ₹3240 (c) ₹4320 (d) ₹1080
10. 10.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
11. 11.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
12. 12.The simple interest on ₹2500 for 4 years is ₹600. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
13. 13.₹8500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹11900 (b) ₹3400 (c) ₹12750 (d) ₹9350
14. 14.The simple interest on ₹1000 for 2 years is ₹240. What is the rate per year? (a) 12% (b) 24% (c) 13% (d) 11%
15. 15.₹5500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹5775 (b) ₹6325 (c) ₹825 (d) ₹6600
16. 16.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
17. 17.In how many years will ₹1000 earn ₹320 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
18. 18.₹4000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4800 (b) ₹800 (c) ₹4960 (d) ₹4160
19. 19.In how many years will ₹5000 earn ₹450 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
20. 20.₹6500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7670 (b) ₹1170 (c) ₹8060 (d) ₹6890
21. 21.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
22. 22.In how many years will ₹9500 earn ₹2375 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
23. 23.₹1500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹1680 (c) ₹1740 (d) ₹180
24. 24.What is the simple interest on ₹3500 at 2% per year for 4 years? (a) ₹70 (b) ₹350 (c) ₹280 (d) ₹3780
25. 25.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 4%
26. 26.The simple interest on ₹9500 for 4 years is ₹2660. What is the rate per year? (a) 8% (b) 28% (c) 7% (d) 6%
27. 27.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
28. 28.₹4500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹4770 (b) ₹5580 (c) ₹5850 (d) ₹1080
29. 29.₹10000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹11000 (b) ₹1000 (c) ₹10500 (d) ₹11500
30. 30.₹3500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹3780 (b) ₹210 (c) ₹3710 (d) ₹3570
31. 31.The simple interest on ₹4000 for 5 years is ₹1600. What is the rate per year? (a) 9% (b) 8% (c) 40% (d) 7%
32. 32.The simple interest on ₹9000 for 2 years is ₹2160. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 24%
33. 33.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 36%
34. 34.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
35. 35.₹3000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹3330 (b) ₹4320 (c) ₹990 (d) ₹3990
36. 36.In how many years will ₹1500 earn ₹225 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
37. 37.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 9% (b) 2% (c) 4% (d) 3%
38. 38.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹7500 (b) ₹500 (c) ₹2500 (d) ₹3000
39. 39.₹3000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹3360 (c) ₹4080 (d) ₹4440
40. 40.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years

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