Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 688 · 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 ₹9000 at 2% per year for 3 years? (a) ₹540 (b) ₹180 (c) ₹720 (d) ₹9540
2. 2.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
3. 3.₹4500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1260 (b) ₹6075 (c) ₹5760 (d) ₹4815
4. 4.₹9500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹10925 (b) ₹9975 (c) ₹10450 (d) ₹950
5. 5.What is the simple interest on ₹5500 at 12% per year for 4 years? (a) ₹3300 (b) ₹2640 (c) ₹660 (d) ₹8140
6. 6.In how many years will ₹5000 earn ₹2400 simple interest at 12% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
7. 7.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 2% (b) 4% (c) 1% (d) 3%
8. 8.The simple interest on ₹2000 for 5 years is ₹400. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 20%
9. 9.What is the simple interest on ₹3500 at 4% per year for 4 years? (a) ₹140 (b) ₹4060 (c) ₹560 (d) ₹700
10. 10.₹1000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1360 (b) ₹270 (c) ₹1090 (d) ₹1270
11. 11.₹8000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹4800 (b) ₹12800 (c) ₹8960 (d) ₹13760
12. 12.The simple interest on ₹1000 for 4 years is ₹320. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 32%
13. 13.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹225 (b) ₹3625 (c) ₹1125 (d) ₹1350
14. 14.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
15. 15.What is the simple interest on ₹9500 at 5% per year for 4 years? (a) ₹475 (b) ₹11400 (c) ₹2375 (d) ₹1900
16. 16.The simple interest on ₹5000 for 5 years is ₹3000. What is the rate per year? (a) 11% (b) 12% (c) 60% (d) 13%
17. 17.₹1000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1180 (b) ₹1060 (c) ₹1240 (d) ₹180
18. 18.₹6500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1820 (b) ₹8320 (c) ₹6955 (d) ₹8775
19. 19.What is the simple interest on ₹4000 at 2% per year for 5 years? (a) ₹4400 (b) ₹80 (c) ₹400 (d) ₹480
20. 20.₹2000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹2180 (c) ₹2360 (d) ₹2540
21. 21.What is the simple interest on ₹7000 at 11% per year for 2 years? (a) ₹1540 (b) ₹770 (c) ₹2310 (d) ₹8540
22. 22.₹8500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10540 (b) ₹9180 (c) ₹1360 (d) ₹9860
23. 23.In how many years will ₹9000 earn ₹1800 simple interest at 5% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
24. 24.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 13% (b) 24% (c) 12% (d) 11%
25. 25.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
26. 26.₹9000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹9810 (b) ₹2430 (c) ₹12240 (d) ₹11430
27. 27.₹6000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹6600 (b) ₹7800 (c) ₹1200 (d) ₹7200
28. 28.The simple interest on ₹4000 for 4 years is ₹1920. What is the rate per year? (a) 48% (b) 11% (c) 12% (d) 13%
29. 29.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
30. 30.₹9000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1620 (b) ₹10620 (c) ₹9540 (d) ₹11160
31. 31.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 4%
32. 32.In how many years will ₹5500 earn ₹660 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
33. 33.What is the simple interest on ₹5000 at 5% per year for 3 years? (a) ₹5750 (b) ₹1000 (c) ₹250 (d) ₹750
34. 34.The simple interest on ₹7000 for 2 years is ₹980. What is the rate per year? (a) 14% (b) 7% (c) 6% (d) 8%
35. 35.The simple interest on ₹2500 for 4 years is ₹900. What is the rate per year? (a) 8% (b) 36% (c) 10% (d) 9%
36. 36.The simple interest on ₹8000 for 5 years is ₹1600. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 20%
37. 37.What is the simple interest on ₹4500 at 10% per year for 2 years? (a) ₹450 (b) ₹5400 (c) ₹900 (d) ₹1350
38. 38.What is the simple interest on ₹10000 at 5% per year for 3 years? (a) ₹1500 (b) ₹500 (c) ₹11500 (d) ₹2000
39. 39.In how many years will ₹5500 earn ₹2750 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
40. 40.In how many years will ₹9500 earn ₹3800 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years

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