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Is n an integer?

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Is n an integer?  [#permalink]

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New post 10 Jul 2017, 07:28
1
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A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

67% (00:35) correct 33% (00:48) wrong based on 6 sessions

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Is n an integer?

(1) 2n is an integer.
(2) 5n is an integer.

Please explain your answers

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Re: Is n an integer?  [#permalink]

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New post 10 Jul 2017, 07:38
Is n an integer?

1. 2n is an integer.
n could be 1 or 1/2. In one case, the number n is an integer, and in another option, it is not.
Insufficient
2. 5n is an integer.
n could be 1 or 1/5. In one case, the number n is an integer, and in another option, it is not.
Insufficient

On combining information from both the statements, we can certainly say that the only option when
2n and 5n are both integers, n has to be integer(Sufficient) (Option C)
Hope that helps!
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Re: Is n an integer?  [#permalink]

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New post 10 Jul 2017, 08:00
Shilpy1 wrote:
Is n an integer?

(1) 2n is an integer.
(2) 5n is an integer.

Please explain your answers


Hi Shilpy1,

Suggestion: Please search on google or use gmat cub search before posting a question. It keeps away duplicate posts away.

This question has already been discussed here : https://gmatclub.com/forum/is-n-an-integer-130390.html . Bunuel has already provided the best and easy solution.

To your help, here are rules of posting. Please have a go thru:
rules-for-posting-please-read-this-before-posting-133935.html

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Is n an integer?   [#permalink] 10 Jul 2017, 08:00
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