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m05#06

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ajshivam
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m05#06 [#permalink] New post   14 Nov 2010, 06:27
Always D.
Missed S2 and went for A initially.

S1 - (-1,0,1,2,3,4): Result - 0 Suff
S2 - Has to contain 0. Suff

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Re: m05#06 [#permalink] New post   23 Nov 2010, 10:54
holy I didn't consider zero as an integer ...:(
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Re: m05#06 [#permalink] New post   09 Dec 2010, 15:51
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scorcho wrote:
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

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D

Source: GMAT Club Tests - hardest GMAT questions

The explanation for S1 indicates that all integers are knowable (The greatest integer is 4).

S2 indicates that "the sequence has both positive and negative integers" therefore zero is included and the product will be zero.

Nothing is incorrect with the explanation, but S1 would also be sufficient by dint of zero also being included in the sequence. Or at least that's what I take consecutive to mean.

I only mention this because it's another way to prosecute S1, although I admit knowing I could crank out the product concretely was the first reason I discounted S1.


Be wary when consecutive integers cross 0.

Statement 1) says 4 is the greatest integer so the sequence will look like this
-1,0,1,2,3,4 (the product of these consecutive numbers is 0) SUFFICIENT

Statement 2) If the consecutive numbers have positive and negative numbers then it MUST cross 0. This will also yield 0 all the time. SUFFICIENT
ex: -1,0,1,2,3,4
ex 2: -2,-1,0,1,2,3


D is the answer.
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Re: m05#06 [#permalink] New post   12 Dec 2010, 19:34
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D

As 0 will be included in both the options...
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Re: m05#06 [#permalink] New post   16 Nov 2011, 06:49
Ahhh crud. I read s2 incorrectly and assumed they HAD to be positive or negative - got rid of zero. :oops:
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Re: m05#06 [#permalink] New post   16 Nov 2012, 06:38
From S1: we can conclude : {-2 -1 0 2 3 4} So Ans =0
From S2 : We can conclude: {-4,-3,-2,-1,0,1}, {-3,-2,-1,0,1,2}, {-2,-1,0,1,2,3}, {-1,0,1,2,3,4}
So any set Ans =0
So S1 and S2 could individually solve the answer so answer option is E.

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Re: m05#06 [#permalink]
16 Nov 2012, 06:38
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