InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A ribbon is 3 metres long. Can we cut it into 50 cm pieces and have nothing left over? Write the reason why or why not. |
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Answer» 3 metres = 300 cm. We can cut it into 50 cm pieces. Since 300 is exactly divisible 50. That is 300 is multiples of 50. 300 ÷ 50 = 6 We will get 6 pieces, nothing is left over. |
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| 2. |
A ribbon is 3 metres long. I need 8 pieces of ribbon each 40 cm long. How many centimetres shorter is the ribbon than the length I need? |
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Answer» 1 piece of 40 cm, so for 8 pieces ribbon needed is 40 x 8 = 320 cm. But ribbon is 3 metre = 300 cm long. So ribbon is shorter by 320 – 300 = 20 cm. |
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| 3. |
A paper Is 2 metres long. I need 8 pieces of paper each 30 cm long. How many centimetres shorter is the paper than the length I need? |
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Answer» A piece of 30 cm, so for 8 pieces paper needed is 30 x 8 = 240 cm. But paper is 2 metre = 2 x 100 = 200 cm long. So paper is shorter by 240 – 200 = 40 cm |
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| 4. |
A string is 4 metres long. Can we cut it into 50 cm pieces and have nothing left over? |
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Answer» 4 metres = 400 cm. We can cut it into 50 cm pieces. Since 400 is exactly divisible by 50. That is 400 is multiple of 50 400 + 50 = 8 We will get 8 pieces. Nothing is left over. |
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| 5. |
Write 5 numbers that are multiples of 3 as well as 5. |
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Answer» 3 as well as 5 means 3 and 5. i.e. multiples of 15. They are 15, 30, 45, 60, 75. |
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| 6. |
Determine whether the pairs of numbers given below are co-prime numbers:i. 10, 33ii. 11, 30 |
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Answer» i. 10, 33 Common factors of 10 and 33 is only 1. So, 10 and 33 are co-prime numbers. ii. 11, 30 Common factors of 11 and 30 is only 1. So, 11 and 30 are co-prime numbers. |
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| 7. |
Write five three-digit numbers that are multiples of 5. |
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Answer» 100, 105, 110, 115, 120. |
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| 8. |
Write five three-digit numbers that are multiples of 2. |
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Answer» 100, 102, 104, 106, 108. |
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| 9. |
Is 8 a factor of 60? |
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Answer» No, since 60 is not exactly divisible by 8. |
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| 10. |
Write the factors of the following numbers:i. 45ii. 48iii. 60 |
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Answer» i. 45 45 is exactly divisible by 1, 3, 5, 9,15, 45. So, 1, 3, 5, 9, 15, 45 are the factors of 45. ii. 48 48 is exactly divisible by 1, 2, 3, 4, 6, 8,12,16, 24, 48. So, 1, 2, 3, 4, 6, 8,12,16, 24, 48 are the factors of 48. iii. 60 60 is exactly divisible by 1, 2, 3, 4, 5, 6,10,12, 15, 20, 30, 60 So, 1, 2, 3, 4, 5, 6,10, 12, 15, 20, 30, 60 are the factors of 60. |
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| 11. |
Write the factors of the following numbers:i. 8ii. 5iii. 14iv. 10 |
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Answer» i. 8 8 is exactly divisible by 1, 2, 4, 8. So, 1, 2, 4, 8 are factors of 8. ii. 5 5 is exactly divisible by 1, 5. So, 1, 5 are factors of 5. iii. 14 14 is exactly divisible by 1, 2, 7, 14. So, 1, 2, 7, 14 are the factors 14. iv. 10 10 is exactly divisible by 1, 2, 5, 10. So, 1, 2, 5, 10 are the factors of 10. |
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| 12. |
Write the factors of the following numbers:i. 7ii. 22iii. 25iv. 32v. 33 |
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Answer» i. 7 7 is exactly divisible by 1, 7. So, 1, 7 are factors of 7. ii. 22 22 is exactly divisible by 1, 2, 11, 22. So, 1, 2, 11, 22 are the factors of 22. iii. 25 25 is exactly divisible by 1, 5, 25. So, 1, 5, 25 are the factors of 25. iv. 32 32 is exactly divisible by 1, 2, 4, 8,16, 32. So, 1, 2, 4, 8, 16, 32 are the factors of 32. v. 33 33 is exactly divisible by 1, 3, 11, 33. So, 1, 3, 11, 33 are the factors of 33. |
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