Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 20 · 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.What is the simple interest on ₹1500 at 6% per year for 4 years? (a) ₹450 (b) ₹360 (c) ₹90 (d) ₹1860
2. 2.What is the simple interest on ₹3000 at 12% per year for 2 years? (a) ₹3720 (b) ₹360 (c) ₹720 (d) ₹1080
3. 3.In how many years will ₹8000 earn ₹2400 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
4. 4.The simple interest on ₹3000 for 2 years is ₹420. What is the rate per year? (a) 8% (b) 7% (c) 14% (d) 6%
5. 5.₹8500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹8755 (b) ₹9520 (c) ₹9775 (d) ₹1020
6. 6.In how many years will ₹7500 earn ₹450 simple interest at 2% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
7. 7.The simple interest on ₹4000 for 2 years is ₹720. What is the rate per year? (a) 10% (b) 18% (c) 8% (d) 9%
8. 8.What is the simple interest on ₹1500 at 6% per year for 3 years? (a) ₹360 (b) ₹270 (c) ₹1770 (d) ₹90
9. 9.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹945 (b) ₹630 (c) ₹315 (d) ₹4130
10. 10.What is the simple interest on ₹9000 at 4% per year for 4 years? (a) ₹10440 (b) ₹360 (c) ₹1800 (d) ₹1440
11. 11.What is the simple interest on ₹7500 at 11% per year for 5 years? (a) ₹825 (b) ₹4125 (c) ₹11625 (d) ₹4950
12. 12.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 10% (b) 20% (c) 11% (d) 9%
13. 13.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹6720 (b) ₹720 (c) ₹240 (d) ₹960
14. 14.₹8500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8840 (b) ₹9860 (c) ₹10200 (d) ₹1360
15. 15.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
16. 16.The simple interest on ₹4000 for 2 years is ₹880. What is the rate per year? (a) 22% (b) 12% (c) 11% (d) 10%
17. 17.₹7000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7350 (b) ₹8400 (c) ₹1050 (d) ₹8050
18. 18.In how many years will ₹9500 earn ₹2660 simple interest at 7% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
19. 19.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹180 (b) ₹1860 (c) ₹540 (d) ₹360
20. 20.The simple interest on ₹9000 for 5 years is ₹4050. What is the rate per year? (a) 9% (b) 45% (c) 10% (d) 8%
21. 21.In how many years will ₹8500 earn ₹2380 simple interest at 7% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
22. 22.In how many years will ₹4500 earn ₹2475 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
23. 23.What is the simple interest on ₹7000 at 12% per year for 5 years? (a) ₹4200 (b) ₹11200 (c) ₹840 (d) ₹5040
24. 24.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹4950 (b) ₹450 (c) ₹225 (d) ₹675
25. 25.The simple interest on ₹6000 for 5 years is ₹600. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 10%
26. 26.What is the simple interest on ₹6000 at 10% per year for 5 years? (a) ₹3000 (b) ₹3600 (c) ₹9000 (d) ₹600
27. 27.The simple interest on ₹9000 for 2 years is ₹360. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 1%
28. 28.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹7560 (b) ₹560 (c) ₹840 (d) ₹280
29. 29.The simple interest on ₹2500 for 2 years is ₹500. What is the rate per year? (a) 10% (b) 11% (c) 20% (d) 9%
30. 30.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 12% (b) 5% (c) 3% (d) 4%
31. 31.What is the simple interest on ₹7000 at 8% per year for 3 years? (a) ₹560 (b) ₹2240 (c) ₹8680 (d) ₹1680
32. 32.In how many years will ₹2500 earn ₹1375 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
33. 33.What is the simple interest on ₹1500 at 11% per year for 2 years? (a) ₹495 (b) ₹165 (c) ₹1830 (d) ₹330
34. 34.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹7620 (c) ₹540 (d) ₹2160
35. 35.The simple interest on ₹8000 for 3 years is ₹1200. What is the rate per year? (a) 15% (b) 5% (c) 4% (d) 6%
36. 36.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹1995 (b) ₹2660 (c) ₹665 (d) ₹11495
37. 37.In how many years will ₹7000 earn ₹700 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
38. 38.In how many years will ₹3000 earn ₹450 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
39. 39.What is the simple interest on ₹7500 at 5% per year for 5 years? (a) ₹375 (b) ₹2250 (c) ₹1875 (d) ₹9375
40. 40.In how many years will ₹7500 earn ₹1050 simple interest at 7% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years

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