Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 398 · 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 ₹700 simple interest at 7% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
2. 2.₹3500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3710 (b) ₹4760 (c) ₹4550 (d) ₹1050
3. 3.The simple interest on ₹3500 for 5 years is ₹525. What is the rate per year? (a) 2% (b) 3% (c) 15% (d) 4%
4. 4.₹8000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹12000 (b) ₹4000 (c) ₹8800 (d) ₹12800
5. 5.In how many years will ₹1500 earn ₹360 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
6. 6.₹1500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1860 (b) ₹1620 (c) ₹1980 (d) ₹360
7. 7.₹9000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹11700 (b) ₹11160 (c) ₹9540 (d) ₹2160
8. 8.₹9500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹10070 (b) ₹12350 (c) ₹2850 (d) ₹12920
9. 9.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 16% (b) 3% (c) 4% (d) 5%
10. 10.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 11% (b) 22% (c) 12% (d) 10%
11. 11.In how many years will ₹8000 earn ₹1280 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
12. 12.₹8000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8240 (b) ₹9200 (c) ₹1200 (d) ₹9440
13. 13.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9265 (b) ₹8755 (c) ₹765 (d) ₹9520
14. 14.What is the simple interest on ₹6000 at 9% per year for 2 years? (a) ₹1620 (b) ₹1080 (c) ₹7080 (d) ₹540
15. 15.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 18%
16. 16.The simple interest on ₹1000 for 5 years is ₹150. What is the rate per year? (a) 3% (b) 15% (c) 2% (d) 4%
17. 17.In how many years will ₹4000 earn ₹400 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
18. 18.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹200 (b) ₹600 (c) ₹400 (d) ₹5400
19. 19.₹10000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹10300 (c) ₹10900 (d) ₹10600
20. 20.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹300 (b) ₹225 (c) ₹75 (d) ₹1725
21. 21.The simple interest on ₹3500 for 4 years is ₹1400. What is the rate per year? (a) 11% (b) 9% (c) 40% (d) 10%
22. 22.₹8000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹10400 (b) ₹11200 (c) ₹2400 (d) ₹8800
23. 23.The simple interest on ₹5500 for 5 years is ₹825. What is the rate per year? (a) 4% (b) 15% (c) 3% (d) 2%
24. 24.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 2% (b) 3% (c) 12% (d) 4%
25. 25.₹9500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹12920 (b) ₹10640 (c) ₹3420 (d) ₹14060
26. 26.In how many years will ₹8500 earn ₹3060 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
27. 27.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 6% (b) 8% (c) 35% (d) 7%
28. 28.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹275 (b) ₹550 (c) ₹825 (d) ₹3050
29. 29.What is the simple interest on ₹10000 at 8% per year for 5 years? (a) ₹14000 (b) ₹800 (c) ₹4800 (d) ₹4000
30. 30.In how many years will ₹3500 earn ₹1225 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
31. 31.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 4% (b) 5% (c) 3% (d) 8%
32. 32.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
33. 33.What is the simple interest on ₹6000 at 10% per year for 4 years? (a) ₹600 (b) ₹8400 (c) ₹2400 (d) ₹3000
34. 34.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1020 (b) ₹9520 (c) ₹9010 (d) ₹10030
35. 35.The simple interest on ₹7000 for 3 years is ₹840. What is the rate per year? (a) 12% (b) 5% (c) 4% (d) 3%
36. 36.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹7560 (b) ₹7140 (c) ₹7700 (d) ₹560
37. 37.₹5000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹6250 (b) ₹1250 (c) ₹5250 (d) ₹6500
38. 38.The simple interest on ₹1000 for 2 years is ₹160. What is the rate per year? (a) 16% (b) 9% (c) 8% (d) 7%
39. 39.In how many years will ₹3000 earn ₹240 simple interest at 4% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
40. 40.₹8000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹10880 (b) ₹8960 (c) ₹2880 (d) ₹11840

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