Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 400 · 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 ₹3500 for 4 years is ₹840. What is the rate per year? (a) 24% (b) 7% (c) 6% (d) 5%
2. 2.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹1400 (b) ₹4620 (c) ₹1120 (d) ₹280
3. 3.₹2500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹2875 (b) ₹3000 (c) ₹2625 (d) ₹375
4. 4.₹8500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹9775 (b) ₹1275 (c) ₹10030 (d) ₹8755
5. 5.In how many years will ₹3500 earn ₹560 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
6. 6.In how many years will ₹4000 earn ₹480 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
7. 7.₹3500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3640 (b) ₹4200 (c) ₹560 (d) ₹4060
8. 8.The simple interest on ₹6000 for 3 years is ₹1080. What is the rate per year? (a) 18% (b) 5% (c) 6% (d) 7%
9. 9.₹6000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6480 (b) ₹6720 (c) ₹480 (d) ₹6240
10. 10.The simple interest on ₹3500 for 2 years is ₹840. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
11. 11.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹7085 (b) ₹7280 (c) ₹585 (d) ₹6695
12. 12.In how many years will ₹1000 earn ₹180 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
13. 13.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹7725 (b) ₹7950 (c) ₹8175 (d) ₹450
14. 14.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹80 (b) ₹2080 (c) ₹40 (d) ₹120
15. 15.In how many years will ₹9000 earn ₹2160 simple interest at 12% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
16. 16.In how many years will ₹8000 earn ₹2240 simple interest at 7% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
17. 17.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹4130 (b) ₹630 (c) ₹315 (d) ₹945
18. 18.The simple interest on ₹9000 for 5 years is ₹4050. What is the rate per year? (a) 45% (b) 8% (c) 10% (d) 9%
19. 19.₹8500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1020 (b) ₹8755 (c) ₹9775 (d) ₹9520
20. 20.The simple interest on ₹9000 for 4 years is ₹720. What is the rate per year? (a) 8% (b) 2% (c) 1% (d) 3%
21. 21.What is the simple interest on ₹9500 at 10% per year for 2 years? (a) ₹950 (b) ₹1900 (c) ₹2850 (d) ₹11400
22. 22.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹300 (b) ₹900 (c) ₹1200 (d) ₹3400
23. 23.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹1710 (b) ₹2565 (c) ₹11210 (d) ₹855
24. 24.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹50 (b) ₹100 (c) ₹2600 (d) ₹150
25. 25.In how many years will ₹3500 earn ₹315 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
26. 26.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3700 (b) ₹1000 (c) ₹3500 (d) ₹2700
27. 27.What is the simple interest on ₹1000 at 5% per year for 2 years? (a) ₹50 (b) ₹150 (c) ₹1100 (d) ₹100
28. 28.The simple interest on ₹5000 for 5 years is ₹750. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 15%
29. 29.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹210 (b) ₹7840 (c) ₹1050 (d) ₹840
30. 30.In how many years will ₹4000 earn ₹560 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
31. 31.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 6% (b) 14% (c) 8% (d) 7%
32. 32.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹7085 (b) ₹195 (c) ₹780 (d) ₹585
33. 33.The simple interest on ₹9000 for 3 years is ₹1890. What is the rate per year? (a) 7% (b) 21% (c) 8% (d) 6%
34. 34.In how many years will ₹1000 earn ₹500 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
35. 35.In how many years will ₹7500 earn ₹1500 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
36. 36.₹10000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹12400 (c) ₹12000 (d) ₹10400
37. 37.₹5500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1100 (b) ₹5775 (c) ₹6875 (d) ₹6600
38. 38.₹5000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹5100 (b) ₹5300 (c) ₹5200 (d) ₹200
39. 39.₹7500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹8400 (c) ₹11100 (d) ₹10200
40. 40.₹8000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹8560 (b) ₹9120 (c) ₹9680 (d) ₹1120

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