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M19-31

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M19-31  [#permalink]

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New post 16 Sep 2014, 01:07
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Difficulty:

  55% (hard)

Question Stats:

54% (01:26) correct 46% (01:23) wrong based on 169 sessions

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Re M19-31  [#permalink]

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New post 16 Sep 2014, 01:07
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Re: M19-31  [#permalink]

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New post 07 Dec 2016, 08:55
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Bunuel :

in the 2nd option :

b/a = even integer.

That means b has to be even and a can be even or odd.

The question : Is a/b = even integer?

a we know is even or odd, b is even.

If a is even and b is even = odd or even integer
If a is odd and b is even = non integer.

Hence insufficient. Am i wrong in this thinking?
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New post 07 Dec 2016, 09:04
Vishvesh88 wrote:
Bunuel :

in the 2nd option :

b/a = even integer.

That means b has to be even and a can be even or odd.

The question : Is a/b = even integer?

a we know is even or odd, b is even.

If a is even and b is even = odd or even integer
If a is odd and b is even = non integer.

Hence insufficient. Am i wrong in this thinking?


If you read the solution you'll see that we can deduce one more thing from b/a = even that b must be greater than a. So, a/b no matter whether a is even or not will not be an integer.
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Re: M19-31  [#permalink]

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New post 08 Dec 2016, 07:45
Bunuel : Thanks. Got it.
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New post 04 Sep 2017, 11:34
can someone post the possible answer selections? can't seem to see them on my screen
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New post 04 Sep 2017, 11:36
mak218 wrote:
can someone post the possible answer selections? can't seem to see them on my screen


This is a data sufficiency question. Options for DS questions are always the same.

The data sufficiency problem consists of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements, plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of the word counterclockwise), you must indicate whether—

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D. EACH statement ALONE is sufficient to answer the question asked.
E. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

I suggest you to go through the following posts:
ALL YOU NEED FOR QUANT.
Ultimate GMAT Quantitative Megathread

Hope this helps.
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Re: M19-31  [#permalink]

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New post 20 Mar 2018, 08:28
Thank you!
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Re: M19-31   [#permalink] 20 Mar 2018, 08:28
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