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If X is a digit, 369X70 cannot be divided by which of the following

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Intern
Joined: 10 Feb 2017
Posts: 41
Location: Viet Nam
GPA: 3.5
WE: General Management (Education)
If X is a digit, 369X70 cannot be divided by which of the following  [#permalink]

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26 Sep 2018, 02:18
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Difficulty:

15% (low)

Question Stats:

84% (01:03) correct 16% (02:02) wrong based on 28 sessions

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If X is a digit, 369X70 cannot be divided by which of the following numbers?

A. 15
B. 7
C. 4
D. 6
E. 9

Can someone pls shed light on this question? I'm confused with the question stem...
Intern
Joined: 03 Apr 2013
Posts: 2
Re: If X is a digit, 369X70 cannot be divided by which of the following  [#permalink]

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26 Sep 2018, 02:36
1
The answer is 4 because if the last 2digits is not divisible by 4 then the number cannot be divisible by 4

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Intern
Joined: 03 Apr 2013
Posts: 2
Re: If X is a digit, 369X70 cannot be divided by which of the following  [#permalink]

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26 Sep 2018, 02:37
The answer is 4 because if the last 2digits is not divisible by 4 then the number cannot be divisible by 4

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Intern
Joined: 27 Aug 2018
Posts: 3
Re: If X is a digit, 369X70 cannot be divided by which of the following  [#permalink]

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26 Sep 2018, 02:46
If you studies GMAT Manhattan Number properties, you can realize that the integer is divisible by 4 if it's divisible by 2 twice, or the last 2 digits is divisible by 4. As 70 cannot be divisible by 4, 369X70 is never divisible by 4.

Hope it helps.
Re: If X is a digit, 369X70 cannot be divided by which of the following   [#permalink] 26 Sep 2018, 02:46
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