Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 312 · 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 ₹4500 earn ₹270 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
2. 2.The simple interest on ₹4000 for 4 years is ₹1920. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
3. 3.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹770 (b) ₹385 (c) ₹1155 (d) ₹6270
4. 4.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
5. 5.₹5500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2420 (b) ₹8525 (c) ₹6105 (d) ₹7920
6. 6.In how many years will ₹10000 earn ₹3000 simple interest at 6% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
7. 7.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 1%
8. 8.What is the simple interest on ₹5000 at 9% per year for 4 years? (a) ₹450 (b) ₹1800 (c) ₹6800 (d) ₹2250
9. 9.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹2600 (b) ₹650 (c) ₹1950 (d) ₹8450
10. 10.₹3500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1050 (b) ₹3850 (c) ₹4550 (d) ₹4900
11. 11.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1150 (c) ₹1120 (d) ₹1030
12. 12.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
13. 13.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹7700 (b) ₹560 (c) ₹7560 (d) ₹7140
14. 14.In how many years will ₹7500 earn ₹2625 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
15. 15.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹810 (b) ₹3810 (c) ₹1080 (d) ₹270
16. 16.What is the simple interest on ₹2000 at 4% per year for 2 years? (a) ₹80 (b) ₹160 (c) ₹240 (d) ₹2160
17. 17.What is the simple interest on ₹6500 at 11% per year for 3 years? (a) ₹2145 (b) ₹8645 (c) ₹715 (d) ₹2860
18. 18.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 4% (b) 3% (c) 6% (d) 2%
19. 19.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4400 (b) ₹4600 (c) ₹400 (d) ₹4200
20. 20.The simple interest on ₹1000 for 3 years is ₹240. What is the rate per year? (a) 24% (b) 8% (c) 9% (d) 7%
21. 21.The simple interest on ₹7000 for 2 years is ₹1540. What is the rate per year? (a) 22% (b) 11% (c) 10% (d) 12%
22. 22.₹10000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹600 (b) ₹10200 (c) ₹10800 (d) ₹10600
23. 23.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹210 (b) ₹7840 (c) ₹1050 (d) ₹840
24. 24.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹900 (b) ₹9300 (c) ₹2700 (d) ₹1800
25. 25.In how many years will ₹7000 earn ₹700 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
26. 26.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 18% (b) 5% (c) 7% (d) 6%
27. 27.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹80 (b) ₹4240 (c) ₹240 (d) ₹320
28. 28.₹2000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹3100 (c) ₹880 (d) ₹2220
29. 29.In how many years will ₹3500 earn ₹700 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
30. 30.What is the simple interest on ₹4500 at 12% per year for 4 years? (a) ₹6660 (b) ₹540 (c) ₹2700 (d) ₹2160
31. 31.In how many years will ₹5000 earn ₹400 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
32. 32.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹1200 (c) ₹3500 (d) ₹1000
33. 33.₹6500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹9750 (b) ₹10400 (c) ₹7150 (d) ₹3250
34. 34.The simple interest on ₹9000 for 2 years is ₹720. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 8%
35. 35.What is the simple interest on ₹10000 at 8% per year for 4 years? (a) ₹4000 (b) ₹3200 (c) ₹13200 (d) ₹800
36. 36.₹8500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹8755 (b) ₹1020 (c) ₹9520 (d) ₹9775
37. 37.What is the simple interest on ₹8000 at 5% per year for 3 years? (a) ₹9200 (b) ₹1200 (c) ₹1600 (d) ₹400
38. 38.In how many years will ₹7500 earn ₹900 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
39. 39.In how many years will ₹7500 earn ₹1875 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
40. 40.₹4000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1200 (b) ₹4400 (c) ₹5200 (d) ₹5600

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