Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 707 · 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.In how many years will ₹5000 earn ₹2250 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
2. 2.₹4000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4400 (b) ₹2000 (c) ₹6000 (d) ₹6400
3. 3.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 9% (b) 40% (c) 8% (d) 7%
4. 4.₹6000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹7080 (c) ₹7440 (d) ₹6360
5. 5.What is the simple interest on ₹1500 at 2% per year for 3 years? (a) ₹1590 (b) ₹90 (c) ₹30 (d) ₹120
6. 6.What is the simple interest on ₹7000 at 8% per year for 4 years? (a) ₹560 (b) ₹2240 (c) ₹2800 (d) ₹9240
7. 7.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 12% (b) 4% (c) 2% (d) 3%
8. 8.In how many years will ₹1500 earn ₹90 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
9. 9.What is the simple interest on ₹3000 at 6% per year for 4 years? (a) ₹720 (b) ₹900 (c) ₹180 (d) ₹3720
10. 10.₹4500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹5850 (c) ₹6120 (d) ₹4770
11. 11.What is the simple interest on ₹3500 at 5% per year for 2 years? (a) ₹525 (b) ₹3850 (c) ₹350 (d) ₹175
12. 12.In how many years will ₹1500 earn ₹405 simple interest at 9% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
13. 13.What is the simple interest on ₹8500 at 12% per year for 2 years? (a) ₹2040 (b) ₹3060 (c) ₹1020 (d) ₹10540
14. 14.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
15. 15.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 12%
16. 16.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹2800 (b) ₹10240 (c) ₹2240 (d) ₹560
17. 17.₹6000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6720 (b) ₹8160 (c) ₹1440 (d) ₹7440
18. 18.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1600 (b) ₹4320 (c) ₹5920 (d) ₹5600
19. 19.In how many years will ₹4000 earn ₹480 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
20. 20.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 36%
21. 21.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
22. 22.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
23. 23.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹320 (b) ₹8480 (c) ₹8320 (d) ₹8160
24. 24.In how many years will ₹9500 earn ₹1330 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
25. 25.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 3% (b) 20% (c) 4% (d) 5%
26. 26.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 4% (b) 12% (c) 5% (d) 3%
27. 27.The simple interest on ₹2000 for 2 years is ₹320. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 16%
28. 28.₹6500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2145 (b) ₹9360 (c) ₹8645 (d) ₹7215
29. 29.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹5600 (b) ₹6800 (c) ₹1200 (d) ₹6200
30. 30.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
31. 31.₹1500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1560 (b) ₹1800 (c) ₹240 (d) ₹1740
32. 32.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹640 (b) ₹480 (c) ₹8480 (d) ₹160
33. 33.What is the simple interest on ₹9500 at 12% per year for 2 years? (a) ₹1140 (b) ₹2280 (c) ₹11780 (d) ₹3420
34. 34.In how many years will ₹8000 earn ₹800 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
35. 35.What is the simple interest on ₹10000 at 3% per year for 3 years? (a) ₹300 (b) ₹1200 (c) ₹900 (d) ₹10900
36. 36.The simple interest on ₹5000 for 2 years is ₹700. What is the rate per year? (a) 6% (b) 14% (c) 8% (d) 7%
37. 37.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹320 (b) ₹240 (c) ₹80 (d) ₹4240
38. 38.₹10000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10200 (b) ₹1000 (c) ₹11000 (d) ₹11200
39. 39.The simple interest on ₹2500 for 2 years is ₹350. What is the rate per year? (a) 14% (b) 8% (c) 6% (d) 7%
40. 40.In how many years will ₹4500 earn ₹405 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years

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