Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 942 · 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.₹1500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2100 (b) ₹480 (c) ₹1620 (d) ₹1980
2. 2.The simple interest on ₹9000 for 3 years is ₹810. What is the rate per year? (a) 9% (b) 2% (c) 3% (d) 4%
3. 3.What is the simple interest on ₹3500 at 4% per year for 5 years? (a) ₹4200 (b) ₹700 (c) ₹140 (d) ₹840
4. 4.The simple interest on ₹7500 for 4 years is ₹900. What is the rate per year? (a) 2% (b) 12% (c) 4% (d) 3%
5. 5.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 9% (b) 20% (c) 10% (d) 11%
6. 6.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 4%
7. 7.The simple interest on ₹10000 for 5 years is ₹3000. What is the rate per year? (a) 6% (b) 5% (c) 30% (d) 7%
8. 8.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹900 (b) ₹10600 (c) ₹300 (d) ₹600
9. 9.₹8500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4675 (b) ₹9435 (c) ₹14110 (d) ₹13175
10. 10.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
11. 11.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4480 (b) ₹3745 (c) ₹4235 (d) ₹735
12. 12.What is the simple interest on ₹1500 at 6% per year for 4 years? (a) ₹1860 (b) ₹90 (c) ₹360 (d) ₹450
13. 13.What is the simple interest on ₹6000 at 9% per year for 2 years? (a) ₹7080 (b) ₹540 (c) ₹1620 (d) ₹1080
14. 14.What is the simple interest on ₹3000 at 7% per year for 3 years? (a) ₹210 (b) ₹840 (c) ₹630 (d) ₹3630
15. 15.In how many years will ₹6000 earn ₹540 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
16. 16.The simple interest on ₹8000 for 2 years is ₹320. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
17. 17.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
18. 18.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4840 (b) ₹4280 (c) ₹840 (d) ₹5120
19. 19.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹8700 (b) ₹1200 (c) ₹600 (d) ₹1800
20. 20.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹60 (c) ₹1530 (d) ₹1590
21. 21.₹9500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹10260 (b) ₹9690 (c) ₹10450 (d) ₹760
22. 22.The simple interest on ₹4000 for 3 years is ₹960. What is the rate per year? (a) 7% (b) 8% (c) 24% (d) 9%
23. 23.In how many years will ₹3000 earn ₹720 simple interest at 12% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
24. 24.In how many years will ₹6000 earn ₹2700 simple interest at 9% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
25. 25.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
26. 26.₹5500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹5720 (b) ₹6600 (c) ₹6380 (d) ₹880
27. 27.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 4%
28. 28.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹5680 (b) ₹5400 (c) ₹1400 (d) ₹4280
29. 29.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
30. 30.The simple interest on ₹9000 for 4 years is ₹1440. What is the rate per year? (a) 16% (b) 3% (c) 4% (d) 5%
31. 31.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹3120 (b) ₹2340 (c) ₹8840 (d) ₹780
32. 32.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
33. 33.₹2500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹2650 (b) ₹2550 (c) ₹100 (d) ₹2600
34. 34.In how many years will ₹6000 earn ₹480 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
35. 35.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 15% (b) 3% (c) 4% (d) 2%
36. 36.The simple interest on ₹3000 for 5 years is ₹900. What is the rate per year? (a) 7% (b) 30% (c) 6% (d) 5%
37. 37.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹3600 (b) ₹750 (c) ₹600 (d) ₹150
38. 38.In how many years will ₹8500 earn ₹765 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
39. 39.₹2000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹2200 (b) ₹2240 (c) ₹2040 (d) ₹200
40. 40.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years

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