Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 164 · 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 ₹1000 earn ₹90 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
2. 2.What is the simple interest on ₹5000 at 3% per year for 3 years? (a) ₹600 (b) ₹5450 (c) ₹150 (d) ₹450
3. 3.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹180 (b) ₹2120 (c) ₹60 (d) ₹120
4. 4.₹8000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹9200 (c) ₹8400 (d) ₹8800
5. 5.What is the simple interest on ₹7500 at 8% per year for 3 years? (a) ₹9300 (b) ₹2400 (c) ₹1800 (d) ₹600
6. 6.The simple interest on ₹5000 for 2 years is ₹1000. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 20%
7. 7.The simple interest on ₹3000 for 5 years is ₹300. What is the rate per year? (a) 1% (b) 10% (c) 2% (d) 3%
8. 8.In how many years will ₹1500 earn ₹450 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
9. 9.What is the simple interest on ₹8500 at 9% per year for 2 years? (a) ₹2295 (b) ₹765 (c) ₹1530 (d) ₹10030
10. 10.The simple interest on ₹8500 for 2 years is ₹1360. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 16%
11. 11.In how many years will ₹7500 earn ₹300 simple interest at 2% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
12. 12.The simple interest on ₹6000 for 2 years is ₹1080. What is the rate per year? (a) 9% (b) 10% (c) 18% (d) 8%
13. 13.The simple interest on ₹7500 for 3 years is ₹1575. What is the rate per year? (a) 6% (b) 8% (c) 21% (d) 7%
14. 14.In how many years will ₹9000 earn ₹1350 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
15. 15.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8670 (b) ₹340 (c) ₹9010 (d) ₹8840
16. 16.In how many years will ₹7500 earn ₹1500 simple interest at 5% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
17. 17.The simple interest on ₹8000 for 5 years is ₹2000. What is the rate per year? (a) 25% (b) 4% (c) 5% (d) 6%
18. 18.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹5120 (b) ₹280 (c) ₹1400 (d) ₹1120
19. 19.The simple interest on ₹1000 for 4 years is ₹280. What is the rate per year? (a) 28% (b) 6% (c) 7% (d) 8%
20. 20.₹7000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹7210 (b) ₹630 (c) ₹7630 (d) ₹7840
21. 21.The simple interest on ₹9000 for 2 years is ₹1440. What is the rate per year? (a) 16% (b) 9% (c) 7% (d) 8%
22. 22.In how many years will ₹1000 earn ₹150 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
23. 23.₹5500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹5940 (b) ₹330 (c) ₹5610 (d) ₹5830
24. 24.The simple interest on ₹7000 for 3 years is ₹630. What is the rate per year? (a) 3% (b) 9% (c) 2% (d) 4%
25. 25.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
26. 26.The simple interest on ₹5000 for 3 years is ₹1800. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 36%
27. 27.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
28. 28.₹3500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹4375 (b) ₹4550 (c) ₹3675 (d) ₹875
29. 29.In how many years will ₹8500 earn ₹1020 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
30. 30.In how many years will ₹9000 earn ₹1080 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
31. 31.₹7500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1575 (b) ₹9075 (c) ₹9600 (d) ₹8025
32. 32.In how many years will ₹8000 earn ₹4400 simple interest at 11% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
33. 33.The simple interest on ₹9500 for 3 years is ₹1140. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 12%
34. 34.What is the simple interest on ₹6500 at 4% per year for 4 years? (a) ₹1040 (b) ₹260 (c) ₹1300 (d) ₹7540
35. 35.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹2660 (b) ₹665 (c) ₹1995 (d) ₹11495
36. 36.What is the simple interest on ₹3000 at 2% per year for 3 years? (a) ₹240 (b) ₹3180 (c) ₹180 (d) ₹60
37. 37.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹440 (b) ₹5830 (c) ₹110 (d) ₹330
38. 38.In how many years will ₹10000 earn ₹1200 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
39. 39.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹360 (b) ₹540 (c) ₹2360 (d) ₹180
40. 40.The simple interest on ₹9000 for 3 years is ₹1350. What is the rate per year? (a) 15% (b) 5% (c) 6% (d) 4%

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