Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 95 · 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.₹5000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1000 (b) ₹6250 (c) ₹5250 (d) ₹6000
2. 2.What is the simple interest on ₹10000 at 7% per year for 4 years? (a) ₹700 (b) ₹3500 (c) ₹12800 (d) ₹2800
3. 3.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹1650 (b) ₹275 (c) ₹1375 (d) ₹6875
4. 4.What is the simple interest on ₹4000 at 12% per year for 4 years? (a) ₹2400 (b) ₹1920 (c) ₹480 (d) ₹5920
5. 5.₹9500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10450 (b) ₹950 (c) ₹10640 (d) ₹9690
6. 6.₹10000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹10500 (b) ₹11500 (c) ₹12000 (d) ₹1500
7. 7.The simple interest on ₹3500 for 2 years is ₹420. What is the rate per year? (a) 5% (b) 7% (c) 12% (d) 6%
8. 8.What is the simple interest on ₹9000 at 6% per year for 5 years? (a) ₹11700 (b) ₹3240 (c) ₹2700 (d) ₹540
9. 9.The simple interest on ₹10000 for 4 years is ₹1600. What is the rate per year? (a) 4% (b) 3% (c) 16% (d) 5%
10. 10.₹1500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹120 (c) ₹1680 (d) ₹1620
11. 11.In how many years will ₹5000 earn ₹1250 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
12. 12.₹1500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹2220 (c) ₹1620 (d) ₹2100
13. 13.In how many years will ₹3500 earn ₹700 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
14. 14.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
15. 15.₹9000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹720 (b) ₹10080 (c) ₹9360 (d) ₹9720
16. 16.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹250 (b) ₹1200 (c) ₹200 (d) ₹50
17. 17.The simple interest on ₹3500 for 2 years is ₹490. What is the rate per year? (a) 14% (b) 7% (c) 6% (d) 8%
18. 18.₹4500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹6120 (b) ₹1620 (c) ₹6525 (d) ₹4905
19. 19.In how many years will ₹8500 earn ₹3825 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
20. 20.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
21. 21.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹5175 (c) ₹4950 (d) ₹4725
22. 22.What is the simple interest on ₹5500 at 12% per year for 2 years? (a) ₹6820 (b) ₹1320 (c) ₹1980 (d) ₹660
23. 23.In how many years will ₹3000 earn ₹300 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
24. 24.In how many years will ₹9000 earn ₹540 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
25. 25.The simple interest on ₹3000 for 2 years is ₹420. What is the rate per year? (a) 6% (b) 7% (c) 14% (d) 8%
26. 26.The simple interest on ₹7000 for 2 years is ₹1260. What is the rate per year? (a) 18% (b) 10% (c) 8% (d) 9%
27. 27.The simple interest on ₹5500 for 3 years is ₹990. What is the rate per year? (a) 18% (b) 6% (c) 7% (d) 5%
28. 28.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹540 (b) ₹4860 (c) ₹180 (d) ₹360
29. 29.The simple interest on ₹2000 for 4 years is ₹400. What is the rate per year? (a) 20% (b) 6% (c) 4% (d) 5%
30. 30.What is the simple interest on ₹10000 at 2% per year for 5 years? (a) ₹200 (b) ₹11000 (c) ₹1000 (d) ₹1200
31. 31.₹10000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹13300 (b) ₹12200 (c) ₹2200 (d) ₹11100
32. 32.In how many years will ₹1500 earn ₹135 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
33. 33.In how many years will ₹1500 earn ₹60 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
34. 34.The simple interest on ₹7500 for 5 years is ₹2625. What is the rate per year? (a) 8% (b) 6% (c) 35% (d) 7%
35. 35.The simple interest on ₹6000 for 5 years is ₹1200. What is the rate per year? (a) 20% (b) 3% (c) 4% (d) 5%
36. 36.What is the simple interest on ₹4500 at 11% per year for 3 years? (a) ₹1485 (b) ₹495 (c) ₹5985 (d) ₹1980
37. 37.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
38. 38.₹3000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3960 (b) ₹3720 (c) ₹720 (d) ₹3240
39. 39.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 8% (b) 6% (c) 35% (d) 7%
40. 40.In how many years will ₹7500 earn ₹1650 simple interest at 11% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years

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