Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 763 · 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.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1120 (b) ₹1040 (c) ₹1080 (d) ₹80
2. 2.The simple interest on ₹1000 for 3 years is ₹210. What is the rate per year? (a) 6% (b) 7% (c) 21% (d) 8%
3. 3.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
4. 4.The simple interest on ₹2500 for 2 years is ₹150. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%
5. 5.In how many years will ₹9500 earn ₹1140 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
6. 6.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2800 (b) ₹2700 (c) ₹200 (d) ₹2600
7. 7.What is the simple interest on ₹5500 at 5% per year for 4 years? (a) ₹275 (b) ₹1375 (c) ₹1100 (d) ₹6600
8. 8.₹8000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9680 (b) ₹1120 (c) ₹9120 (d) ₹8560
9. 9.What is the simple interest on ₹2000 at 11% per year for 4 years? (a) ₹2880 (b) ₹220 (c) ₹880 (d) ₹1100
10. 10.₹6000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹8700 (b) ₹2700 (c) ₹6540 (d) ₹9240
11. 11.What is the simple interest on ₹2000 at 9% per year for 5 years? (a) ₹1080 (b) ₹2900 (c) ₹900 (d) ₹180
12. 12.₹3000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹3300 (b) ₹4200 (c) ₹900 (d) ₹3900
13. 13.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 10% (b) 4% (c) 6% (d) 5%
14. 14.The simple interest on ₹5500 for 4 years is ₹1320. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
15. 15.₹2000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹600 (b) ₹2800 (c) ₹2600 (d) ₹2200
16. 16.The simple interest on ₹7000 for 4 years is ₹840. What is the rate per year? (a) 3% (b) 12% (c) 2% (d) 4%
17. 17.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
18. 18.In how many years will ₹8000 earn ₹2800 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
19. 19.₹9000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹11160 (b) ₹1800 (c) ₹9360 (d) ₹10800
20. 20.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
21. 21.In how many years will ₹7500 earn ₹2100 simple interest at 7% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
22. 22.In how many years will ₹4000 earn ₹1200 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
23. 23.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹2400 (b) ₹6800 (c) ₹1800 (d) ₹600
24. 24.In how many years will ₹2500 earn ₹150 simple interest at 3% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
25. 25.The simple interest on ₹2500 for 2 years is ₹250. What is the rate per year? (a) 4% (b) 10% (c) 6% (d) 5%
26. 26.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹4860 (b) ₹270 (c) ₹4770 (d) ₹4590
27. 27.₹5500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹9130 (b) ₹6105 (c) ₹8525 (d) ₹3025
28. 28.The simple interest on ₹3500 for 2 years is ₹280. What is the rate per year? (a) 8% (b) 4% (c) 3% (d) 5%
29. 29.₹7500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1800 (b) ₹10200 (c) ₹8400 (d) ₹9300
30. 30.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 8% (b) 10% (c) 27% (d) 9%
31. 31.₹1000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹480 (c) ₹1480 (d) ₹1600
32. 32.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7080 (b) ₹6720 (c) ₹720 (d) ₹6360
33. 33.₹3000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3300 (b) ₹4200 (c) ₹4500 (d) ₹1200
34. 34.The simple interest on ₹6500 for 5 years is ₹650. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 10%
35. 35.The simple interest on ₹7000 for 2 years is ₹840. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
36. 36.In how many years will ₹8000 earn ₹2880 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
37. 37.₹5000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹5100 (b) ₹5300 (c) ₹200 (d) ₹5200
38. 38.In how many years will ₹10000 earn ₹1600 simple interest at 8% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
39. 39.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
40. 40.The simple interest on ₹6500 for 5 years is ₹3250. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 50%

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