Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 456 · 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 ₹9000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 3% (c) 8% (d) 4%
2. 2.₹7500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8025 (b) ₹10125 (c) ₹9600 (d) ₹2100
3. 3.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
4. 4.The simple interest on ₹5000 for 5 years is ₹2500. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 50%
5. 5.₹3000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3330 (b) ₹4320 (c) ₹4650 (d) ₹1320
6. 6.What is the simple interest on ₹4500 at 11% per year for 2 years? (a) ₹1485 (b) ₹5490 (c) ₹495 (d) ₹990
7. 7.The simple interest on ₹5500 for 2 years is ₹770. What is the rate per year? (a) 7% (b) 8% (c) 14% (d) 6%
8. 8.₹9500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹9975 (b) ₹11875 (c) ₹12350 (d) ₹2375
9. 9.₹2000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹240 (b) ₹2080 (c) ₹2320 (d) ₹2240
10. 10.The simple interest on ₹3500 for 5 years is ₹350. What is the rate per year? (a) 3% (b) 10% (c) 2% (d) 1%
11. 11.What is the simple interest on ₹10000 at 9% per year for 5 years? (a) ₹4500 (b) ₹900 (c) ₹5400 (d) ₹14500
12. 12.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
13. 13.The simple interest on ₹1500 for 5 years is ₹375. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 25%
14. 14.What is the simple interest on ₹7000 at 10% per year for 3 years? (a) ₹9100 (b) ₹700 (c) ₹2800 (d) ₹2100
15. 15.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹600 (b) ₹450 (c) ₹150 (d) ₹2950
16. 16.In how many years will ₹6500 earn ₹780 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
17. 17.The simple interest on ₹1000 for 3 years is ₹210. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
18. 18.₹3500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3640 (b) ₹3570 (c) ₹140 (d) ₹3710
19. 19.What is the simple interest on ₹4500 at 10% per year for 4 years? (a) ₹1800 (b) ₹6300 (c) ₹2250 (d) ₹450
20. 20.What is the simple interest on ₹1500 at 9% per year for 4 years? (a) ₹675 (b) ₹540 (c) ₹2040 (d) ₹135
21. 21.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹1800 (b) ₹2700 (c) ₹900 (d) ₹9300
22. 22.What is the simple interest on ₹5500 at 10% per year for 3 years? (a) ₹7150 (b) ₹2200 (c) ₹550 (d) ₹1650
23. 23.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹450 (b) ₹540 (c) ₹90 (d) ₹4950
24. 24.In how many years will ₹2000 earn ₹400 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
25. 25.In how many years will ₹2500 earn ₹675 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
26. 26.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1620 (b) ₹1860 (c) ₹1740 (d) ₹240
27. 27.₹6000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹9300 (b) ₹9960 (c) ₹3300 (d) ₹6660
28. 28.What is the simple interest on ₹5000 at 3% per year for 3 years? (a) ₹150 (b) ₹600 (c) ₹450 (d) ₹5450
29. 29.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹1120 (b) ₹40 (c) ₹120 (d) ₹160
30. 30.What is the simple interest on ₹3000 at 3% per year for 2 years? (a) ₹90 (b) ₹270 (c) ₹3180 (d) ₹180
31. 31.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹2600 (b) ₹8450 (c) ₹1950 (d) ₹650
32. 32.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2700 (b) ₹2600 (c) ₹2800 (d) ₹200
33. 33.What is the simple interest on ₹4500 at 10% per year for 2 years? (a) ₹900 (b) ₹1350 (c) ₹450 (d) ₹5400
34. 34.What is the simple interest on ₹4500 at 5% per year for 3 years? (a) ₹5175 (b) ₹675 (c) ₹225 (d) ₹900
35. 35.The simple interest on ₹2500 for 5 years is ₹875. What is the rate per year? (a) 7% (b) 35% (c) 6% (d) 8%
36. 36.What is the simple interest on ₹5500 at 4% per year for 2 years? (a) ₹660 (b) ₹5940 (c) ₹220 (d) ₹440
37. 37.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 9%
38. 38.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹160 (b) ₹2160 (c) ₹2240 (d) ₹2080
39. 39.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹8800 (b) ₹160 (c) ₹960 (d) ₹800
40. 40.The simple interest on ₹1000 for 2 years is ₹200. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 20%

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