Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 259 · 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 ₹1320 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
2. 2.What is the simple interest on ₹2000 at 4% per year for 4 years? (a) ₹320 (b) ₹2320 (c) ₹80 (d) ₹400
3. 3.What is the simple interest on ₹1000 at 6% per year for 2 years? (a) ₹120 (b) ₹180 (c) ₹1120 (d) ₹60
4. 4.₹6500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8450 (b) ₹7150 (c) ₹9100 (d) ₹1950
5. 5.₹6500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2600 (b) ₹9620 (c) ₹9100 (d) ₹7020
6. 6.₹7500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹8625 (b) ₹750 (c) ₹7875 (d) ₹8250
7. 7.In how many years will ₹5000 earn ₹2400 simple interest at 12% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
8. 8.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
9. 9.In how many years will ₹9500 earn ₹1900 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
10. 10.₹7000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹280 (b) ₹7420 (c) ₹7280 (d) ₹7140
11. 11.What is the simple interest on ₹10000 at 4% per year for 2 years? (a) ₹10800 (b) ₹1200 (c) ₹400 (d) ₹800
12. 12.What is the simple interest on ₹8500 at 2% per year for 2 years? (a) ₹340 (b) ₹510 (c) ₹8840 (d) ₹170
13. 13.What is the simple interest on ₹3500 at 4% per year for 5 years? (a) ₹140 (b) ₹700 (c) ₹840 (d) ₹4200
14. 14.In how many years will ₹3000 earn ₹810 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
15. 15.In how many years will ₹1000 earn ₹60 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
16. 16.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹8960 (c) ₹8640 (d) ₹8320
17. 17.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
18. 18.₹7500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹11625 (b) ₹10800 (c) ₹3300 (d) ₹8325
19. 19.₹2000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹800 (b) ₹2960 (c) ₹2160 (d) ₹2800
20. 20.The simple interest on ₹5500 for 5 years is ₹3300. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 60%
21. 21.What is the simple interest on ₹5500 at 3% per year for 5 years? (a) ₹990 (b) ₹6325 (c) ₹165 (d) ₹825
22. 22.₹6000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹9240 (b) ₹8700 (c) ₹2700 (d) ₹6540
23. 23.₹5500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6600 (b) ₹1100 (c) ₹5720 (d) ₹6820
24. 24.In how many years will ₹7000 earn ₹3500 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
25. 25.In how many years will ₹1500 earn ₹150 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
26. 26.The simple interest on ₹5000 for 2 years is ₹900. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
27. 27.₹8000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹10400 (b) ₹8400 (c) ₹10000 (d) ₹2000
28. 28.In how many years will ₹8500 earn ₹1530 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
29. 29.₹5500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹5885 (b) ₹1155 (c) ₹7040 (d) ₹6655
30. 30.In how many years will ₹4500 earn ₹360 simple interest at 4% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
31. 31.₹5000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹5400 (c) ₹7000 (d) ₹6600
32. 32.What is the simple interest on ₹1000 at 4% per year for 4 years? (a) ₹1160 (b) ₹40 (c) ₹200 (d) ₹160
33. 33.What is the simple interest on ₹10000 at 7% per year for 4 years? (a) ₹3500 (b) ₹700 (c) ₹12800 (d) ₹2800
34. 34.In how many years will ₹10000 earn ₹600 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
35. 35.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹6720 (b) ₹240 (c) ₹960 (d) ₹720
36. 36.The simple interest on ₹7000 for 2 years is ₹980. What is the rate per year? (a) 7% (b) 6% (c) 14% (d) 8%
37. 37.In how many years will ₹1000 earn ₹150 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
38. 38.The simple interest on ₹3000 for 3 years is ₹900. What is the rate per year? (a) 11% (b) 30% (c) 9% (d) 10%
39. 39.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹360 (b) ₹1440 (c) ₹1080 (d) ₹5580
40. 40.In how many years will ₹9000 earn ₹2160 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years

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