Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 441 · 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.The simple interest on ₹6500 for 4 years is ₹1300. What is the rate per year? (a) 5% (b) 20% (c) 6% (d) 4%
2. 2.In how many years will ₹4500 earn ₹900 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
3. 3.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4280 (b) ₹5680 (c) ₹1400 (d) ₹5400
4. 4.The simple interest on ₹8500 for 4 years is ₹680. What is the rate per year? (a) 3% (b) 2% (c) 8% (d) 1%
5. 5.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3025 (b) ₹2675 (c) ₹525 (d) ₹3200
6. 6.What is the simple interest on ₹2000 at 3% per year for 3 years? (a) ₹240 (b) ₹180 (c) ₹2180 (d) ₹60
7. 7.In how many years will ₹9500 earn ₹5700 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
8. 8.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4235 (b) ₹735 (c) ₹3745 (d) ₹4480
9. 9.What is the simple interest on ₹8500 at 3% per year for 4 years? (a) ₹9520 (b) ₹1020 (c) ₹1275 (d) ₹255
10. 10.What is the simple interest on ₹7500 at 11% per year for 3 years? (a) ₹3300 (b) ₹825 (c) ₹9975 (d) ₹2475
11. 11.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹600 (b) ₹1800 (c) ₹6800 (d) ₹2400
12. 12.In how many years will ₹2000 earn ₹160 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
13. 13.What is the simple interest on ₹2000 at 3% per year for 4 years? (a) ₹2240 (b) ₹300 (c) ₹60 (d) ₹240
14. 14.The simple interest on ₹4500 for 3 years is ₹1350. What is the rate per year? (a) 11% (b) 9% (c) 30% (d) 10%
15. 15.₹8000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹9920 (b) ₹10880 (c) ₹8960 (d) ₹1920
16. 16.In how many years will ₹3000 earn ₹540 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
17. 17.₹6500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹7865 (b) ₹6955 (c) ₹8320 (d) ₹1365
18. 18.What is the simple interest on ₹3500 at 7% per year for 5 years? (a) ₹245 (b) ₹4725 (c) ₹1470 (d) ₹1225
19. 19.What is the simple interest on ₹7000 at 5% per year for 2 years? (a) ₹700 (b) ₹350 (c) ₹1050 (d) ₹7700
20. 20.₹8500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹9520 (b) ₹9350 (c) ₹8670 (d) ₹850
21. 21.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
22. 22.The simple interest on ₹8000 for 5 years is ₹800. What is the rate per year? (a) 10% (b) 3% (c) 1% (d) 2%
23. 23.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7080 (b) ₹6720 (c) ₹720 (d) ₹6360
24. 24.The simple interest on ₹9000 for 4 years is ₹4320. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 48%
25. 25.What is the simple interest on ₹9000 at 10% per year for 5 years? (a) ₹13500 (b) ₹5400 (c) ₹900 (d) ₹4500
26. 26.In how many years will ₹2500 earn ₹550 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
27. 27.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5150 (b) ₹450 (c) ₹5600 (d) ₹5450
28. 28.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹3120 (b) ₹180 (c) ₹120 (d) ₹60
29. 29.What is the simple interest on ₹3000 at 7% per year for 3 years? (a) ₹630 (b) ₹3630 (c) ₹210 (d) ₹840
30. 30.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 6%
31. 31.In how many years will ₹4500 earn ₹1575 simple interest at 7% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
32. 32.₹2500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹2550 (b) ₹250 (c) ₹2800 (d) ₹2750
33. 33.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 36%
34. 34.In how many years will ₹1500 earn ₹600 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
35. 35.₹9000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹11880 (b) ₹9720 (c) ₹11160 (d) ₹2160
36. 36.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8480 (b) ₹8720 (c) ₹480 (d) ₹8240
37. 37.In how many years will ₹5000 earn ₹1800 simple interest at 12% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
38. 38.What is the simple interest on ₹5000 at 3% per year for 3 years? (a) ₹600 (b) ₹450 (c) ₹5450 (d) ₹150
39. 39.What is the simple interest on ₹4500 at 4% per year for 3 years? (a) ₹720 (b) ₹5040 (c) ₹180 (d) ₹540
40. 40.The simple interest on ₹4500 for 4 years is ₹360. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 8%

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