Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 257 · 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 ₹3000 earn ₹1500 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
2. 2.In how many years will ₹2500 earn ₹375 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
3. 3.₹7500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹10125 (b) ₹2100 (c) ₹9600 (d) ₹8025
4. 4.₹8000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8800 (b) ₹12000 (c) ₹12800 (d) ₹4000
5. 5.The simple interest on ₹3500 for 4 years is ₹1120. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 32%
6. 6.₹9000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9990 (b) ₹10980 (c) ₹11970 (d) ₹1980
7. 7.What is the simple interest on ₹6500 at 2% per year for 5 years? (a) ₹130 (b) ₹780 (c) ₹7150 (d) ₹650
8. 8.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹510 (b) ₹170 (c) ₹9010 (d) ₹680
9. 9.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹490 (b) ₹7980 (c) ₹1470 (d) ₹980
10. 10.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹525 (b) ₹3025 (c) ₹3200 (d) ₹2675
11. 11.What is the simple interest on ₹6000 at 6% per year for 4 years? (a) ₹1440 (b) ₹360 (c) ₹1800 (d) ₹7440
12. 12.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹300 (b) ₹375 (c) ₹75 (d) ₹2800
13. 13.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹2400 (b) ₹11600 (c) ₹1600 (d) ₹800
14. 14.What is the simple interest on ₹9500 at 7% per year for 4 years? (a) ₹12160 (b) ₹3325 (c) ₹665 (d) ₹2660
15. 15.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
16. 16.What is the simple interest on ₹5000 at 2% per year for 2 years? (a) ₹100 (b) ₹200 (c) ₹300 (d) ₹5200
17. 17.The simple interest on ₹1500 for 3 years is ₹450. What is the rate per year? (a) 10% (b) 11% (c) 30% (d) 9%
18. 18.What is the simple interest on ₹5500 at 12% per year for 5 years? (a) ₹3300 (b) ₹3960 (c) ₹8800 (d) ₹660
19. 19.What is the simple interest on ₹4000 at 3% per year for 4 years? (a) ₹480 (b) ₹600 (c) ₹120 (d) ₹4480
20. 20.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
21. 21.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%
22. 22.What is the simple interest on ₹2000 at 8% per year for 5 years? (a) ₹160 (b) ₹2800 (c) ₹800 (d) ₹960
23. 23.₹9000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1800 (b) ₹11700 (c) ₹10800 (d) ₹9900
24. 24.What is the simple interest on ₹7500 at 3% per year for 4 years? (a) ₹8400 (b) ₹225 (c) ₹900 (d) ₹1125
25. 25.In how many years will ₹9500 earn ₹1425 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
26. 26.₹3000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3270 (b) ₹1350 (c) ₹4620 (d) ₹4350
27. 27.The simple interest on ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
28. 28.In how many years will ₹6500 earn ₹1560 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
29. 29.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
30. 30.The simple interest on ₹2000 for 4 years is ₹720. What is the rate per year? (a) 36% (b) 8% (c) 10% (d) 9%
31. 31.What is the simple interest on ₹3000 at 6% per year for 5 years? (a) ₹180 (b) ₹1080 (c) ₹3900 (d) ₹900
32. 32.The simple interest on ₹2000 for 4 years is ₹240. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 12%
33. 33.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹990 (b) ₹330 (c) ₹660 (d) ₹6160
34. 34.What is the simple interest on ₹8000 at 2% per year for 2 years? (a) ₹320 (b) ₹480 (c) ₹160 (d) ₹8320
35. 35.₹3500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹140 (b) ₹3640 (c) ₹3710 (d) ₹3570
36. 36.In how many years will ₹5500 earn ₹1210 simple interest at 11% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
37. 37.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹1440 (c) ₹4440 (d) ₹4800
38. 38.In how many years will ₹2000 earn ₹500 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
39. 39.In how many years will ₹6500 earn ₹1430 simple interest at 11% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
40. 40.The simple interest on ₹2000 for 5 years is ₹600. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 30%

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