Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 144 · 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.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4880 (b) ₹5320 (c) ₹880 (d) ₹4440
2. 2.What is the simple interest on ₹3500 at 4% per year for 3 years? (a) ₹3920 (b) ₹560 (c) ₹140 (d) ₹420
3. 3.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹80 (b) ₹400 (c) ₹1320 (d) ₹320
4. 4.The simple interest on ₹10000 for 4 years is ₹1600. What is the rate per year? (a) 4% (b) 3% (c) 16% (d) 5%
5. 5.The simple interest on ₹7500 for 4 years is ₹600. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 8%
6. 6.What is the simple interest on ₹2000 at 2% per year for 5 years? (a) ₹240 (b) ₹200 (c) ₹2200 (d) ₹40
7. 7.The simple interest on ₹4000 for 2 years is ₹720. What is the rate per year? (a) 10% (b) 9% (c) 18% (d) 8%
8. 8.What is the simple interest on ₹2500 at 8% per year for 4 years? (a) ₹3300 (b) ₹1000 (c) ₹200 (d) ₹800
9. 9.₹8000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8560 (b) ₹10800 (c) ₹2240 (d) ₹10240
10. 10.In how many years will ₹4000 earn ₹1440 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
11. 11.In how many years will ₹7000 earn ₹1120 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
12. 12.₹9500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1140 (b) ₹9880 (c) ₹10640 (d) ₹11020
13. 13.In how many years will ₹3000 earn ₹810 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
14. 14.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹640 (b) ₹160 (c) ₹480 (d) ₹8480
15. 15.The simple interest on ₹7500 for 2 years is ₹1500. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 20%
16. 16.What is the simple interest on ₹7500 at 4% per year for 3 years? (a) ₹300 (b) ₹900 (c) ₹1200 (d) ₹8400
17. 17.The simple interest on ₹6500 for 5 years is ₹1300. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
18. 18.₹4000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹4360 (c) ₹5440 (d) ₹5080
19. 19.The simple interest on ₹5500 for 3 years is ₹825. What is the rate per year? (a) 6% (b) 5% (c) 15% (d) 4%
20. 20.₹9500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹11875 (b) ₹9975 (c) ₹2375 (d) ₹12350
21. 21.What is the simple interest on ₹1500 at 6% per year for 5 years? (a) ₹450 (b) ₹540 (c) ₹90 (d) ₹1950
22. 22.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5150 (b) ₹5450 (c) ₹300 (d) ₹5300
23. 23.₹9500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹12350 (b) ₹10070 (c) ₹2850 (d) ₹12920
24. 24.The simple interest on ₹1500 for 5 years is ₹750. What is the rate per year? (a) 11% (b) 10% (c) 50% (d) 9%
25. 25.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 15%
26. 26.The simple interest on ₹8500 for 5 years is ₹4250. What is the rate per year? (a) 10% (b) 9% (c) 50% (d) 11%
27. 27.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 3% (b) 4% (c) 12% (d) 5%
28. 28.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹585 (b) ₹6890 (c) ₹195 (d) ₹390
29. 29.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹5550 (b) ₹2750 (c) ₹7750 (d) ₹8300
30. 30.In how many years will ₹4500 earn ₹810 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
31. 31.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹8100 (b) ₹600 (c) ₹900 (d) ₹300
32. 32.In how many years will ₹1000 earn ₹120 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
33. 33.In how many years will ₹8000 earn ₹960 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
34. 34.In how many years will ₹5000 earn ₹700 simple interest at 7% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
35. 35.₹2500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹2650 (b) ₹100 (c) ₹2600 (d) ₹2550
36. 36.What is the simple interest on ₹1500 at 10% per year for 2 years? (a) ₹450 (b) ₹1800 (c) ₹300 (d) ₹150
37. 37.The simple interest on ₹1500 for 3 years is ₹135. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 9%
38. 38.What is the simple interest on ₹3000 at 7% per year for 3 years? (a) ₹210 (b) ₹630 (c) ₹3630 (d) ₹840
39. 39.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 21% (b) 8% (c) 6% (d) 7%
40. 40.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 3% (b) 12% (c) 4% (d) 5%

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