Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 87 · 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.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹10240 (b) ₹8560 (c) ₹1680 (d) ₹9680
2. 2.The simple interest on ₹9500 for 4 years is ₹1900. What is the rate per year? (a) 4% (b) 6% (c) 20% (d) 5%
3. 3.In how many years will ₹3000 earn ₹1320 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
4. 4.What is the simple interest on ₹7000 at 10% per year for 3 years? (a) ₹2800 (b) ₹2100 (c) ₹9100 (d) ₹700
5. 5.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3780 (b) ₹280 (c) ₹3640 (d) ₹3920
6. 6.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
7. 7.The simple interest on ₹1500 for 2 years is ₹240. What is the rate per year? (a) 16% (b) 7% (c) 9% (d) 8%
8. 8.The simple interest on ₹4500 for 3 years is ₹810. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
9. 9.What is the simple interest on ₹8500 at 4% per year for 4 years? (a) ₹340 (b) ₹1360 (c) ₹9860 (d) ₹1700
10. 10.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹6655 (b) ₹1155 (c) ₹1540 (d) ₹385
11. 11.In how many years will ₹7000 earn ₹1540 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
12. 12.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1530 (b) ₹120 (c) ₹1620 (d) ₹1650
13. 13.In how many years will ₹5000 earn ₹1000 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
14. 14.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
15. 15.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹4160 (b) ₹80 (c) ₹160 (d) ₹240
16. 16.In how many years will ₹9000 earn ₹1440 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
17. 17.In how many years will ₹2500 earn ₹250 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
18. 18.₹4500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹6300 (b) ₹1350 (c) ₹5850 (d) ₹4950
19. 19.What is the simple interest on ₹2500 at 4% per year for 5 years? (a) ₹3000 (b) ₹500 (c) ₹600 (d) ₹100
20. 20.The simple interest on ₹7000 for 3 years is ₹1260. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%
21. 21.In how many years will ₹9000 earn ₹1620 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
22. 22.What is the simple interest on ₹10000 at 12% per year for 3 years? (a) ₹3600 (b) ₹13600 (c) ₹1200 (d) ₹4800
23. 23.₹5500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹440 (b) ₹5940 (c) ₹6050 (d) ₹5610
24. 24.What is the simple interest on ₹8000 at 12% per year for 3 years? (a) ₹960 (b) ₹10880 (c) ₹2880 (d) ₹3840
25. 25.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9720 (b) ₹9180 (c) ₹720 (d) ₹9900
26. 26.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 9% (b) 8% (c) 36% (d) 10%
27. 27.In how many years will ₹8500 earn ₹1360 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
28. 28.What is the simple interest on ₹7000 at 2% per year for 5 years? (a) ₹140 (b) ₹7700 (c) ₹840 (d) ₹700
29. 29.What is the simple interest on ₹6500 at 5% per year for 2 years? (a) ₹975 (b) ₹7150 (c) ₹650 (d) ₹325
30. 30.In how many years will ₹8500 earn ₹1530 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
31. 31.₹1500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2100 (b) ₹1620 (c) ₹1980 (d) ₹480
32. 32.What is the simple interest on ₹4000 at 6% per year for 3 years? (a) ₹240 (b) ₹960 (c) ₹4720 (d) ₹720
33. 33.In how many years will ₹6000 earn ₹1200 simple interest at 5% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
34. 34.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 18% (b) 10% (c) 8% (d) 9%
35. 35.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 6% (b) 5% (c) 30% (d) 7%
36. 36.The simple interest on ₹3500 for 4 years is ₹560. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 16%
37. 37.In how many years will ₹5000 earn ₹600 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
38. 38.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹16000 (b) ₹4800 (c) ₹14800 (d) ₹11200
39. 39.In how many years will ₹6500 earn ₹520 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
40. 40.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹9010 (b) ₹9520 (c) ₹1020 (d) ₹10030

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