Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 477 · 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 ₹4000 for 4 years is ₹1600. What is the rate per year? (a) 40% (b) 11% (c) 9% (d) 10%
2. 2.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3420 (b) ₹3630 (c) ₹3210 (d) ₹420
3. 3.In how many years will ₹7000 earn ₹700 simple interest at 2% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
4. 4.In how many years will ₹6000 earn ₹2160 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
5. 5.What is the simple interest on ₹3500 at 2% per year for 3 years? (a) ₹280 (b) ₹3710 (c) ₹210 (d) ₹70
6. 6.What is the simple interest on ₹7000 at 10% per year for 3 years? (a) ₹9100 (b) ₹700 (c) ₹2800 (d) ₹2100
7. 7.The simple interest on ₹8500 for 4 years is ₹1360. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 16%
8. 8.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹360 (b) ₹90 (c) ₹3270 (d) ₹270
9. 9.₹7500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1575 (b) ₹9600 (c) ₹8025 (d) ₹9075
10. 10.₹4500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1125 (b) ₹4725 (c) ₹5850 (d) ₹5625
11. 11.What is the simple interest on ₹3000 at 8% per year for 3 years? (a) ₹3720 (b) ₹240 (c) ₹960 (d) ₹720
12. 12.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹5300 (b) ₹300 (c) ₹100 (d) ₹400
13. 13.₹5500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹7975 (b) ₹7480 (c) ₹5995 (d) ₹1980
14. 14.In how many years will ₹3000 earn ₹240 simple interest at 4% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
15. 15.₹3000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹3300 (c) ₹4800 (d) ₹4500
16. 16.In how many years will ₹9500 earn ₹1520 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
17. 17.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹2250 (b) ₹450 (c) ₹11250 (d) ₹2700
18. 18.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4440 (b) ₹4800 (c) ₹1440 (d) ₹3360
19. 19.₹7000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹9520 (b) ₹9100 (c) ₹7420 (d) ₹2100
20. 20.₹10000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10800 (b) ₹12400 (c) ₹1600 (d) ₹11600
21. 21.In how many years will ₹10000 earn ₹4400 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
22. 22.What is the simple interest on ₹3000 at 3% per year for 5 years? (a) ₹90 (b) ₹540 (c) ₹450 (d) ₹3450
23. 23.In how many years will ₹1500 earn ₹180 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
24. 24.In how many years will ₹5500 earn ₹1540 simple interest at 7% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
25. 25.In how many years will ₹5000 earn ₹900 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
26. 26.₹6500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹520 (b) ₹7150 (c) ₹7020 (d) ₹6630
27. 27.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹300 (b) ₹1200 (c) ₹4200 (d) ₹1500
28. 28.What is the simple interest on ₹8000 at 3% per year for 5 years? (a) ₹1200 (b) ₹240 (c) ₹1440 (d) ₹9200
29. 29.₹8000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹12800 (b) ₹8960 (c) ₹3840 (d) ₹11840
30. 30.₹4000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹320 (b) ₹4080 (c) ₹4320 (d) ₹4400
31. 31.The simple interest on ₹8500 for 2 years is ₹2040. What is the rate per year? (a) 11% (b) 13% (c) 24% (d) 12%
32. 32.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2775 (b) ₹550 (c) ₹3325 (d) ₹3050
33. 33.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
34. 34.In how many years will ₹8500 earn ₹1700 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
35. 35.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 7% (b) 6% (c) 21% (d) 8%
36. 36.The simple interest on ₹1500 for 3 years is ₹135. What is the rate per year? (a) 2% (b) 9% (c) 4% (d) 3%
37. 37.₹2500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3000 (b) ₹2750 (c) ₹500 (d) ₹3250
38. 38.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹80 (b) ₹1040 (c) ₹1080 (d) ₹1120
39. 39.The simple interest on ₹9000 for 2 years is ₹900. What is the rate per year? (a) 10% (b) 5% (c) 4% (d) 6%
40. 40.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 3% (b) 4% (c) 6% (d) 2%

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