Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 572 · 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 ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 3% (b) 5% (c) 20% (d) 4%
2. 2.In how many years will ₹5500 earn ₹880 simple interest at 8% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
3. 3.₹6500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹8840 (b) ₹6890 (c) ₹1950 (d) ₹8450
4. 4.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹720 (b) ₹8480 (c) ₹240 (d) ₹480
5. 5.₹9500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹11400 (b) ₹11780 (c) ₹1900 (d) ₹9880
6. 6.In how many years will ₹3000 earn ₹180 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
7. 7.What is the simple interest on ₹8500 at 5% per year for 2 years? (a) ₹9350 (b) ₹850 (c) ₹1275 (d) ₹425
8. 8.The simple interest on ₹3500 for 3 years is ₹420. What is the rate per year? (a) 12% (b) 5% (c) 3% (d) 4%
9. 9.The simple interest on ₹6000 for 4 years is ₹2400. What is the rate per year? (a) 10% (b) 40% (c) 11% (d) 9%
10. 10.The simple interest on ₹1500 for 2 years is ₹330. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 22%
11. 11.What is the simple interest on ₹4000 at 4% per year for 4 years? (a) ₹640 (b) ₹4640 (c) ₹160 (d) ₹800
12. 12.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 3% (b) 4% (c) 16% (d) 5%
13. 13.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 4% (b) 25% (c) 5% (d) 6%
14. 14.In how many years will ₹4000 earn ₹960 simple interest at 6% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
15. 15.The simple interest on ₹9000 for 2 years is ₹1080. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 12%
16. 16.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3920 (b) ₹315 (c) ₹3815 (d) ₹3605
17. 17.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
18. 18.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 6% (b) 5% (c) 10% (d) 4%
19. 19.What is the simple interest on ₹6500 at 3% per year for 5 years? (a) ₹195 (b) ₹7475 (c) ₹1170 (d) ₹975
20. 20.₹3500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1050 (b) ₹4900 (c) ₹3850 (d) ₹4550
21. 21.In how many years will ₹10000 earn ₹1600 simple interest at 8% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
22. 22.What is the simple interest on ₹5500 at 7% per year for 4 years? (a) ₹385 (b) ₹7040 (c) ₹1925 (d) ₹1540
23. 23.In how many years will ₹2000 earn ₹540 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
24. 24.The simple interest on ₹2000 for 5 years is ₹200. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
25. 25.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹1320 (c) ₹1400 (d) ₹320
26. 26.₹6000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹6360 (b) ₹7440 (c) ₹1080 (d) ₹7080
27. 27.What is the simple interest on ₹5500 at 10% per year for 3 years? (a) ₹2200 (b) ₹550 (c) ₹1650 (d) ₹7150
28. 28.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹300 (b) ₹5450 (c) ₹5300 (d) ₹5150
29. 29.The simple interest on ₹2500 for 3 years is ₹600. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
30. 30.In how many years will ₹3500 earn ₹525 simple interest at 5% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
31. 31.In how many years will ₹9500 earn ₹3135 simple interest at 11% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
32. 32.In how many years will ₹4500 earn ₹1800 simple interest at 10% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
33. 33.What is the simple interest on ₹2000 at 6% per year for 2 years? (a) ₹2240 (b) ₹360 (c) ₹240 (d) ₹120
34. 34.₹10000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹10600 (b) ₹10900 (c) ₹10300 (d) ₹600
35. 35.₹4000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹6880 (b) ₹2400 (c) ₹6400 (d) ₹4480
36. 36.What is the simple interest on ₹2000 at 7% per year for 3 years? (a) ₹560 (b) ₹140 (c) ₹420 (d) ₹2420
37. 37.In how many years will ₹3500 earn ₹700 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
38. 38.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹270 (b) ₹90 (c) ₹360 (d) ₹3270
39. 39.What is the simple interest on ₹7500 at 5% per year for 2 years? (a) ₹8250 (b) ₹1125 (c) ₹375 (d) ₹750
40. 40.₹3000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹4350 (c) ₹3270 (d) ₹4620

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