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# Over an eleven-month period, during which national retail co

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Re: Over an eleven-month period, during which national retail co [#permalink]

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09 Dec 2016, 11:30
Only possible answer is D, cuz if A were to be not true then so would B and E... reasoning is that more players could enter the market thus lowering the market share of all players and creating a bigger market which in turn lowers the market share even though sales are the same. C could be true too cuz the competitors could increase market share by itself without the help of new players thus lowering the market share for Friendly

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Re: Over an eleven-month period, during which national retail co [#permalink]

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30 Jan 2017, 11:00

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Re: Over an eleven-month period, during which national retail co [#permalink]

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31 Jan 2017, 02:51
As others have pointed out, the answer is listed as A in other forums, and A is the only logical answer. If Friendly's sales are the same but its market share is down, then some of its competitors must have seen an increase in market share. Even if new vendors entered the market, they would still have to see an increase in market share (from zero to positive!) in order to impact Friendly's market share. A cannot possibly be true given the initial information, so it has to be the answer.

(I should add that this is clearly copied from an official LSAT question--PT 31-2-15, for anyone who wants to look it up. In that question, A is the answer for exactly the same reason, so it's pretty clear that A is the intended answer. The original post here should be corrected.)
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Re: Over an eleven-month period, during which national retail co [#permalink]

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31 Jan 2017, 02:55
wayne7teng, I see no reason to say that if A were false, B and E would also have to be false. B talks about the period before the regulation, when Friendly was on the rise. Nothing that happens later can invalidate this choice on its own. As for E, it's perfectly compatible with A being false. The entry of a new vendor does not necessitate a drop in *sales volume* on the part of other vendors.
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Re: Over an eleven-month period, during which national retail co [#permalink]

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27 Feb 2017, 15:31
Firdaus wrote:
For me D or E was supposed to be the correct one. Went for E on the basis that any information outside the argument in must be True Questions is a wrong answer choice.
but , d looks better on second thought. more appropriate

A is the clear answer since option D is explaining why this happened and the question is asking all explain the paradox EXCEPT which is A as it does not have impact.

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Re: Over an eleven-month period, during which national retail co [#permalink]

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28 Feb 2017, 12:12
gmatprep09 wrote:
Over an eleven-month period, during which national retail computer sales remained stable at 400,000 units per month, sales by the Friendly Computer Stores chain rose 200 percent, increasing the chain’s share of the total market to 7 percent. Other retail stores tried, without success, to attract customers away from the Friendly chain. Then regulation X was imposed on all computer retailers by the federal government. In the ensuing months, Friendly’s total share of the market fell to 4 percent, even though its monthly sales volume remained at the same level it had reached just prior to the enactment of regulation X.

Each of the following, in conjunction with the information presented above, could be true EXCEPT:

(1) All other computer retailers experienced a drop in their sales volume during the four-month period following the enactment of regulation X.

(2) All other computer companies lost some market share during the four-month period prior to the enactment of regulation X.

(3) The enactment of regulation X provided the Friendly chain’s competitors with an advantage they did not previously have.

(4) The enactment of regulation X did not provide the Friendly chain’s competitors with an advantage they did not previously have; other dramatic changes in other market forces caused the decline in the Friendly chain’s market share.

(5) In the period following the enactment of regulation X, many new computer retailers that specialized in low-budget computers entered the marketplace.

I don't have the highest opinion of this question. Among other things, I don't know that I have ever seen an official question of a "could be true" variety. The GMAT CR definitely has "must be true" questions, but this is a looser and sloppier variation that the GMAT doesn't explore.

We know that, during the first eleven-month period before Regulation X, Friendly Computer Stores tripled its sales and shot up to 7% of the market space.
Then, Regulation X goes into effect. In the next moths, Friendly Computer Stores keeps its high levels of sales, but this same value now counts for a smaller percent. A percent is a part over whole ratio. If the part, FCS's sales, stays the same and the percent goes down, this means that the whole, the sales across the whole industry. It absolutely must be true that other computer companies had increased sales during the period following Regulation X.

(A) All other computer retailers experienced a drop in their sales volume during the four-month period following the enactment of regulation X.
This baldly contradicts what we know must be true. There is absolutely no way this statement could be true. This is a promising choice for the answer.

(B) All other computer companies lost some market share during the four-month period prior to the enactment of regulation X.
Certainly, if FCS gained market share, at least some other companies lost market share. Yes, it is at least conceivable that EACH and EVERY other company lost market share. That could in a magical special case world. This is part of what is sloppy about this entire format.

(C) The enactment of regulation X provided the Friendly chain’s competitors with an advantage they did not previously have.
This is certainly plausible, because it seems that the competitors increased their sales while FCS stayed flat.

(D) The enactment of regulation X did not provide the Friendly chain’s competitors with an advantage they did not previously have; other dramatic changes in other market forces caused the decline in the Friendly chain’s market share.
This is tempting, though not in the way that good GMAT CR wrong answer would be a distractor. It's possible that general condition fostered by Regulation X favored wild grow in the market, and these conditions allowed all other companies to make headway, but that something unrelated to Regulation X (lawsuit, labor dispute, accident, etc.) hampered FCS, such that in these otherwise favorable general conditions, the best it could do was to tread water and maintain the level where they already were.

(E) In the period following the enactment of regulation X, many new computer retailers that specialized in low-budget computers entered the marketplace.
This certainly would explain the increase in the competitors and increase in size of the entire sector.

Choice (B), (C), (D), and (E) are choices that could be true, so these are wrong. (A) is the only one that is strictly impossible, so this is the correct answer.

Once again, I think the "could be true" question format is sloppy. The official questions are much more logically tight.

Here's a book review that may be germane:
Princeton Review GMAT Book Review: Cracking the GMAT 2017

Mike
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Re: Over an eleven-month period, during which national retail co [#permalink]

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28 Feb 2017, 12:33
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mikemcgarry, I agree that this problem type isn't likely to show up on the GMAT, but there's nothing sloppy about the logic. The LSAT uses this format all the time, as in the problem this was copied from! "Could be true EXCEPT" just translates to "MUST BE FALSE," and as you've shown, only A must be false.

In any case, I couldn't find a GMAT question with this format, although I did find a discrepancy question that uses "could . . . EXCEPT": https://gmatclub.com/forum/the-tobacco- ... 12457.html
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Re: Over an eleven-month period, during which national retail co [#permalink]

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22 Sep 2017, 11:52
that's right, A is correct.

the passage is a common pattern in gmat, kaplan 800 has such this question.
The passage and options are confusing too.

Here is why A is the answer. In this question, the national sale only consists of Friendly and others.
if national sale increase, but friendly sales remain unchanged => others must increase => A is wrong => A is the answer.

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Re: Over an eleven-month period, during which national retail co   [#permalink] 22 Sep 2017, 11:52

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