Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 150 · 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.₹8500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4675 (b) ₹9435 (c) ₹14110 (d) ₹13175
2. 2.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 5% (c) 6% (d) 4%
3. 3.₹9500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹11210 (b) ₹1140 (c) ₹10640 (d) ₹10070
4. 4.₹4000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹4800 (c) ₹5200 (d) ₹4400
5. 5.The simple interest on ₹3000 for 5 years is ₹1050. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 35%
6. 6.In how many years will ₹5000 earn ₹1200 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
7. 7.What is the simple interest on ₹4000 at 3% per year for 2 years? (a) ₹120 (b) ₹360 (c) ₹4240 (d) ₹240
8. 8.In how many years will ₹7000 earn ₹2520 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
9. 9.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹8400 (c) ₹8100 (d) ₹7800
10. 10.₹6500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9230 (b) ₹2275 (c) ₹6955 (d) ₹8775
11. 11.The simple interest on ₹4500 for 3 years is ₹675. What is the rate per year? (a) 4% (b) 15% (c) 6% (d) 5%
12. 12.In how many years will ₹1500 earn ₹90 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
13. 13.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 24% (b) 13% (c) 12% (d) 11%
14. 14.The simple interest on ₹8000 for 3 years is ₹720. What is the rate per year? (a) 4% (b) 9% (c) 2% (d) 3%
15. 15.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹6160 (b) ₹660 (c) ₹330 (d) ₹990
16. 16.What is the simple interest on ₹5000 at 9% per year for 5 years? (a) ₹2250 (b) ₹450 (c) ₹7250 (d) ₹2700
17. 17.₹7500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8850 (b) ₹7725 (c) ₹1125 (d) ₹8625
18. 18.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 2% (b) 4% (c) 6% (d) 3%
19. 19.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
20. 20.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 6%
21. 21.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3400 (b) ₹3175 (c) ₹675 (d) ₹2725
22. 22.What is the simple interest on ₹10000 at 7% per year for 5 years? (a) ₹700 (b) ₹4200 (c) ₹13500 (d) ₹3500
23. 23.What is the simple interest on ₹3500 at 5% per year for 5 years? (a) ₹875 (b) ₹4375 (c) ₹1050 (d) ₹175
24. 24.What is the simple interest on ₹2000 at 2% per year for 4 years? (a) ₹160 (b) ₹2160 (c) ₹40 (d) ₹200
25. 25.What is the simple interest on ₹9000 at 8% per year for 3 years? (a) ₹2160 (b) ₹11160 (c) ₹720 (d) ₹2880
26. 26.What is the simple interest on ₹6500 at 9% per year for 4 years? (a) ₹2925 (b) ₹585 (c) ₹8840 (d) ₹2340
27. 27.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹240 (b) ₹160 (c) ₹80 (d) ₹4160
28. 28.In how many years will ₹2000 earn ₹240 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
29. 29.The simple interest on ₹5500 for 2 years is ₹1320. What is the rate per year? (a) 13% (b) 12% (c) 24% (d) 11%
30. 30.The simple interest on ₹6000 for 2 years is ₹1440. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
31. 31.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
32. 32.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹9600 (b) ₹1600 (c) ₹9920 (d) ₹8320
33. 33.₹4500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4950 (b) ₹2250 (c) ₹6750 (d) ₹7200
34. 34.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹20 (b) ₹80 (c) ₹1080 (d) ₹100
35. 35.In how many years will ₹5000 earn ₹2000 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
36. 36.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4880 (b) ₹5320 (c) ₹880 (d) ₹4440
37. 37.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3325 (b) ₹2775 (c) ₹3050 (d) ₹550
38. 38.In how many years will ₹5000 earn ₹1350 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
39. 39.₹6000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6120 (b) ₹240 (c) ₹6360 (d) ₹6240
40. 40.In how many years will ₹9000 earn ₹2700 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years

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