Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 939 · 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.₹7000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹7350 (b) ₹1400 (c) ₹8750 (d) ₹8400
2. 2.In how many years will ₹4500 earn ₹540 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
3. 3.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 30% (b) 7% (c) 6% (d) 5%
4. 4.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹1300 (c) ₹1100 (d) ₹1200
5. 5.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 3% (b) 15% (c) 2% (d) 4%
6. 6.In how many years will ₹9500 earn ₹2280 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
7. 7.₹8500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹9095 (b) ₹1785 (c) ₹10880 (d) ₹10285
8. 8.What is the simple interest on ₹3500 at 5% per year for 4 years? (a) ₹875 (b) ₹175 (c) ₹700 (d) ₹4200
9. 9.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹2240 (b) ₹320 (c) ₹80 (d) ₹240
10. 10.₹9000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9810 (b) ₹9540 (c) ₹540 (d) ₹9270
11. 11.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 5% (b) 4% (c) 8% (d) 3%
12. 12.₹4000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹5080 (b) ₹4360 (c) ₹1080 (d) ₹5440
13. 13.The simple interest on ₹2500 for 4 years is ₹800. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 32%
14. 14.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 4% (b) 12% (c) 3% (d) 5%
15. 15.What is the simple interest on ₹5500 at 6% per year for 3 years? (a) ₹1320 (b) ₹330 (c) ₹990 (d) ₹6490
16. 16.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
17. 17.The simple interest on ₹5500 for 3 years is ₹1815. What is the rate per year? (a) 10% (b) 33% (c) 12% (d) 11%
18. 18.₹7500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹10650 (b) ₹10125 (c) ₹8025 (d) ₹2625
19. 19.₹5500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5775 (b) ₹7150 (c) ₹1375 (d) ₹6875
20. 20.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 3% (b) 4% (c) 6% (d) 2%
21. 21.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
22. 22.₹2000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2880 (b) ₹2220 (c) ₹660 (d) ₹2660
23. 23.The simple interest on ₹10000 for 4 years is ₹800. What is the rate per year? (a) 2% (b) 1% (c) 8% (d) 3%
24. 24.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
25. 25.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹2200 (b) ₹200 (c) ₹100 (d) ₹300
26. 26.In how many years will ₹3500 earn ₹560 simple interest at 4% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
27. 27.In how many years will ₹7000 earn ₹980 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
28. 28.₹7000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹8680 (b) ₹7560 (c) ₹1120 (d) ₹8120
29. 29.In how many years will ₹4500 earn ₹630 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
30. 30.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹540 (b) ₹270 (c) ₹810 (d) ₹9540
31. 31.The simple interest on ₹5500 for 2 years is ₹1210. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
32. 32.What is the simple interest on ₹1000 at 2% per year for 3 years? (a) ₹80 (b) ₹1060 (c) ₹20 (d) ₹60
33. 33.In how many years will ₹8000 earn ₹2800 simple interest at 7% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
34. 34.The simple interest on ₹4500 for 4 years is ₹2160. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 48%
35. 35.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 44% (b) 10% (c) 11% (d) 12%
36. 36.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹8480 (b) ₹480 (c) ₹720 (d) ₹240
37. 37.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2120 (b) ₹360 (c) ₹2480 (d) ₹2360
38. 38.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2080 (b) ₹520 (c) ₹2600 (d) ₹8580
39. 39.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
40. 40.In how many years will ₹5000 earn ₹1800 simple interest at 12% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years

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