Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 428 · 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 ₹6000 at 7% per year for 4 years? (a) ₹7680 (b) ₹2100 (c) ₹1680 (d) ₹420
2. 2.The simple interest on ₹10000 for 2 years is ₹2000. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 20%
3. 3.The simple interest on ₹4500 for 5 years is ₹675. What is the rate per year? (a) 3% (b) 2% (c) 15% (d) 4%
4. 4.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
5. 5.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
6. 6.The simple interest on ₹7500 for 4 years is ₹3300. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
7. 7.What is the simple interest on ₹5000 at 7% per year for 2 years? (a) ₹5700 (b) ₹700 (c) ₹350 (d) ₹1050
8. 8.In how many years will ₹1000 earn ₹300 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
9. 9.What is the simple interest on ₹5500 at 3% per year for 3 years? (a) ₹165 (b) ₹495 (c) ₹5995 (d) ₹660
10. 10.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹160 (b) ₹240 (c) ₹4160 (d) ₹80
11. 11.What is the simple interest on ₹5000 at 11% per year for 2 years? (a) ₹6100 (b) ₹1100 (c) ₹1650 (d) ₹550
12. 12.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 8%
13. 13.₹8500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹12325 (b) ₹3825 (c) ₹13090 (d) ₹9265
14. 14.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹4680 (b) ₹270 (c) ₹90 (d) ₹180
15. 15.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 4% (b) 5% (c) 3% (d) 12%
16. 16.What is the simple interest on ₹5500 at 3% per year for 5 years? (a) ₹825 (b) ₹990 (c) ₹6325 (d) ₹165
17. 17.In how many years will ₹9000 earn ₹1980 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
18. 18.In how many years will ₹4000 earn ₹960 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
19. 19.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹300 (b) ₹400 (c) ₹100 (d) ₹2800
20. 20.In how many years will ₹3000 earn ₹1080 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
21. 21.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6360 (b) ₹6120 (c) ₹360 (d) ₹6480
22. 22.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹1680 (b) ₹9680 (c) ₹560 (d) ₹2240
23. 23.The simple interest on ₹8000 for 5 years is ₹2400. What is the rate per year? (a) 6% (b) 7% (c) 5% (d) 30%
24. 24.The simple interest on ₹4000 for 5 years is ₹2400. What is the rate per year? (a) 60% (b) 12% (c) 13% (d) 11%
25. 25.₹7000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹3360 (c) ₹10360 (d) ₹7840
26. 26.The simple interest on ₹3000 for 4 years is ₹840. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
27. 27.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
28. 28.The simple interest on ₹9500 for 4 years is ₹3040. What is the rate per year? (a) 8% (b) 32% (c) 9% (d) 7%
29. 29.₹5000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹6650 (b) ₹7200 (c) ₹1650 (d) ₹5550
30. 30.What is the simple interest on ₹7500 at 11% per year for 5 years? (a) ₹4950 (b) ₹11625 (c) ₹825 (d) ₹4125
31. 31.₹6500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3120 (b) ₹7280 (c) ₹10400 (d) ₹9620
32. 32.₹1500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1680 (b) ₹2400 (c) ₹2220 (d) ₹720
33. 33.The simple interest on ₹5000 for 2 years is ₹200. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 1%
34. 34.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
35. 35.What is the simple interest on ₹2000 at 4% per year for 2 years? (a) ₹80 (b) ₹160 (c) ₹240 (d) ₹2160
36. 36.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 1% (b) 2% (c) 6% (d) 3%
37. 37.The simple interest on ₹9000 for 2 years is ₹2160. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
38. 38.₹3000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹3360 (c) ₹3240 (d) ₹3120
39. 39.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹7420 (b) ₹210 (c) ₹420 (d) ₹630
40. 40.In how many years will ₹5000 earn ₹600 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years

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