Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 568 · 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.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹320 (b) ₹1320 (c) ₹400 (d) ₹80
2. 2.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 4% (b) 10% (c) 6% (d) 5%
3. 3.What is the simple interest on ₹3500 at 5% per year for 5 years? (a) ₹175 (b) ₹875 (c) ₹1050 (d) ₹4375
4. 4.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
5. 5.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹5220 (b) ₹900 (c) ₹180 (d) ₹720
6. 6.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹2325 (b) ₹825 (c) ₹990 (d) ₹165
7. 7.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
8. 8.₹6500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2275 (b) ₹9230 (c) ₹6955 (d) ₹8775
9. 9.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
10. 10.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹270 (b) ₹135 (c) ₹4770 (d) ₹405
11. 11.The simple interest on ₹6000 for 3 years is ₹1080. What is the rate per year? (a) 7% (b) 18% (c) 6% (d) 5%
12. 12.The simple interest on ₹7000 for 3 years is ₹420. What is the rate per year? (a) 1% (b) 3% (c) 6% (d) 2%
13. 13.What is the simple interest on ₹3500 at 2% per year for 3 years? (a) ₹280 (b) ₹3710 (c) ₹210 (d) ₹70
14. 14.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3090 (b) ₹180 (c) ₹3180 (d) ₹3270
15. 15.What is the simple interest on ₹7000 at 9% per year for 2 years? (a) ₹8260 (b) ₹630 (c) ₹1890 (d) ₹1260
16. 16.₹4500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹4680 (b) ₹5040 (c) ₹5220 (d) ₹540
17. 17.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 14% (b) 6% (c) 7% (d) 8%
18. 18.The simple interest on ₹4000 for 5 years is ₹400. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
19. 19.In how many years will ₹7500 earn ₹3300 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
20. 20.₹6500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7150 (b) ₹9750 (c) ₹9100 (d) ₹2600
21. 21.What is the simple interest on ₹2000 at 3% per year for 5 years? (a) ₹60 (b) ₹360 (c) ₹2300 (d) ₹300
22. 22.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3815 (b) ₹630 (c) ₹4445 (d) ₹4130
23. 23.In how many years will ₹1000 earn ₹60 simple interest at 2% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
24. 24.What is the simple interest on ₹9500 at 5% per year for 5 years? (a) ₹2375 (b) ₹475 (c) ₹2850 (d) ₹11875
25. 25.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹270 (b) ₹4770 (c) ₹4635 (d) ₹4905
26. 26.The simple interest on ₹1000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 8% (c) 5% (d) 3%
27. 27.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹8060 (b) ₹6890 (c) ₹1560 (d) ₹8450
28. 28.What is the simple interest on ₹7000 at 12% per year for 5 years? (a) ₹840 (b) ₹4200 (c) ₹5040 (d) ₹11200
29. 29.The simple interest on ₹5500 for 3 years is ₹825. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 15%
30. 30.The simple interest on ₹5500 for 3 years is ₹660. What is the rate per year? (a) 12% (b) 3% (c) 5% (d) 4%
31. 31.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
32. 32.₹7500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹12000 (b) ₹8250 (c) ₹3750 (d) ₹11250
33. 33.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹450 (b) ₹11250 (c) ₹2250 (d) ₹2700
34. 34.In how many years will ₹2500 earn ₹825 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
35. 35.In how many years will ₹3000 earn ₹1800 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
36. 36.What is the simple interest on ₹5500 at 9% per year for 5 years? (a) ₹7975 (b) ₹2475 (c) ₹495 (d) ₹2970
37. 37.The simple interest on ₹3000 for 3 years is ₹1080. What is the rate per year? (a) 11% (b) 36% (c) 13% (d) 12%
38. 38.The simple interest on ₹6500 for 4 years is ₹520. What is the rate per year? (a) 1% (b) 2% (c) 8% (d) 3%
39. 39.The simple interest on ₹5000 for 3 years is ₹1050. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
40. 40.The simple interest on ₹8500 for 4 years is ₹2040. What is the rate per year? (a) 5% (b) 6% (c) 24% (d) 7%

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