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If a and b are consecutive positive integers, and ab = 30x,

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Senior Manager
Joined: 31 Jul 2017
Posts: 287
Location: Malaysia
WE: Consulting (Energy and Utilities)
If a and b are consecutive positive integers, and ab = 30x, [#permalink]

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05 Feb 2018, 23:41
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67% (02:06) correct 33% (01:07) wrong based on 6 sessions

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If a and b are consecutive positive integers, and $$ab = 30x$$, is x an integer?

I. $$a^2$$ is divisible by 25.
II. 63 is a factor of $$b^2$$.
[Reveal] Spoiler: OA

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Joined: 27 Nov 2017
Posts: 1
Re: If a and b are consecutive positive integers, and ab = 30x, [#permalink]

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05 Feb 2018, 23:59
Belive it should be C.. As we would have factors from both the staments as 5 9 and 7 so x should be some.. faction

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Joined: 02 Sep 2009
Posts: 43804
Re: If a and b are consecutive positive integers, and ab = 30x, [#permalink]

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06 Feb 2018, 00:42
rahul16singh28 wrote:
If a and b are consecutive positive integers, and $$ab = 30x$$, is x an integer?

I. $$a^2$$ is divisible by 25.
II. 63 is a factor of $$b^2$$.

Discussed here: https://gmatclub.com/forum/if-a-and-b-a ... 63958.html
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Re: If a and b are consecutive positive integers, and ab = 30x,   [#permalink] 06 Feb 2018, 00:42
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