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Need help to solve question

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Need help to solve question  [#permalink]

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New post 27 Mar 2019, 18:38
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need help to understand following question ....

If x is an integer divisble by 15 but not divisble by 20, then x cannot be divisble by which of the following?

A - 6
B - 10
C - 12
D - 30
E - 150

I can understand that x is an integer which is divisible by 15, means it is one of the multiples of 15 i.e. 15,30,45 etc. Secondly, since x is divisble by 15, it should be divisble by factors of 15 as well i.e. 3 & 5 ... even then I am unable to solve ... please help
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Re: Need help to solve question  [#permalink]

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New post 27 Mar 2019, 20:12
ahmadmoghal wrote:
need help to understand following question ....

If x is an integer divisble by 15 but not divisble by 20, then x cannot be divisble by which of the following?

A - 6
B - 10
C - 12
D - 30
E - 150

I can understand that x is an integer which is divisible by 15, means it is one of the multiples of 15 i.e. 15,30,45 etc. Secondly, since x is divisble by 15, it should be divisble by factors of 15 as well i.e. 3 & 5 ... even then I am unable to solve ... please help


Discussed here: https://gmatclub.com/forum/if-x-is-an-i ... fl=similar
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Re: Need help to solve question   [#permalink] 27 Mar 2019, 20:12
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