Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 345 · 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 ₹2500 earn ₹150 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
2. 2.The simple interest on ₹5500 for 3 years is ₹1320. What is the rate per year? (a) 9% (b) 24% (c) 8% (d) 7%
3. 3.The simple interest on ₹4000 for 3 years is ₹720. What is the rate per year? (a) 7% (b) 18% (c) 5% (d) 6%
4. 4.In how many years will ₹7000 earn ₹980 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
5. 5.In how many years will ₹2000 earn ₹720 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
6. 6.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
7. 7.What is the simple interest on ₹6500 at 9% per year for 2 years? (a) ₹585 (b) ₹1755 (c) ₹7670 (d) ₹1170
8. 8.In how many years will ₹7500 earn ₹1500 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
9. 9.What is the simple interest on ₹2000 at 6% per year for 4 years? (a) ₹120 (b) ₹480 (c) ₹2480 (d) ₹600
10. 10.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
11. 11.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 21% (b) 7% (c) 8% (d) 6%
12. 12.In how many years will ₹1000 earn ₹150 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
13. 13.The simple interest on ₹1500 for 2 years is ₹180. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
14. 14.The simple interest on ₹9500 for 3 years is ₹1710. What is the rate per year? (a) 5% (b) 18% (c) 7% (d) 6%
15. 15.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹4620 (b) ₹1400 (c) ₹280 (d) ₹1120
16. 16.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 12% (b) 7% (c) 6% (d) 5%
17. 17.₹9000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹13500 (b) ₹3600 (c) ₹12600 (d) ₹9900
18. 18.What is the simple interest on ₹3000 at 10% per year for 3 years? (a) ₹1200 (b) ₹300 (c) ₹3900 (d) ₹900
19. 19.The simple interest on ₹8000 for 4 years is ₹2240. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
20. 20.In how many years will ₹8000 earn ₹2880 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
21. 21.₹8000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹9600 (c) ₹1200 (d) ₹9200
22. 22.In how many years will ₹9500 earn ₹1330 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
23. 23.In how many years will ₹1000 earn ₹180 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
24. 24.The simple interest on ₹4000 for 4 years is ₹480. What is the rate per year? (a) 4% (b) 3% (c) 12% (d) 2%
25. 25.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹2240 (b) ₹80 (c) ₹320 (d) ₹240
26. 26.₹2000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹2140 (c) ₹2840 (d) ₹700
27. 27.What is the simple interest on ₹7500 at 9% per year for 2 years? (a) ₹2025 (b) ₹675 (c) ₹1350 (d) ₹8850
28. 28.What is the simple interest on ₹5500 at 5% per year for 2 years? (a) ₹550 (b) ₹6050 (c) ₹825 (d) ₹275
29. 29.₹4500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1260 (b) ₹5760 (c) ₹4815 (d) ₹6075
30. 30.The simple interest on ₹5000 for 2 years is ₹900. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 18%
31. 31.The simple interest on ₹7500 for 2 years is ₹1200. What is the rate per year? (a) 16% (b) 7% (c) 8% (d) 9%
32. 32.What is the simple interest on ₹1500 at 12% per year for 4 years? (a) ₹720 (b) ₹2220 (c) ₹900 (d) ₹180
33. 33.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹600 (b) ₹3600 (c) ₹750 (d) ₹150
34. 34.The simple interest on ₹9500 for 2 years is ₹950. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 10%
35. 35.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹10890 (b) ₹2520 (c) ₹1890 (d) ₹630
36. 36.In how many years will ₹5000 earn ₹2000 simple interest at 10% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
37. 37.₹9500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12920 (b) ₹10640 (c) ₹11780 (d) ₹2280
38. 38.What is the simple interest on ₹5000 at 7% per year for 5 years? (a) ₹350 (b) ₹6750 (c) ₹1750 (d) ₹2100
39. 39.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹10360 (b) ₹3360 (c) ₹4200 (d) ₹840
40. 40.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%

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