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False chicory's taproot is always one half as long as the

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False chicory's taproot is always one half as long as the [#permalink]

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False chicory's taproot is always one half as long as the
plant is tall. Furthermore, the more rain false chicory
receives, the taller it tends to grow. In fact, false chicory
plants that receive greater than twice the average rainfall of
the species' usual habitat always reach above-average
heights for false chicory.

If the statements above are true, then which one of the
following must also be true?

(A) If two false chicory plants differ in height, then
it is likely that the one with the shorter taproot
has received less than twice the average
rainfall of the species' usual habitat.
(B) If a false chicory plant has a longer-than
average taproot, then it is likely to have
received more than twice the average rainfall
of the species' usual habitat.
(C) It is not possible for a false chicory plant to
receive only the average amount of rainfall of
the species' usual habitat and be of above
average height.
(D) If the plants in one group of false chicory are
not taller than those in another group of false
chicory, then the two groups must have
received the same amount of rainfall.
(E) If a false chicory plant receives greater than
twice the average rainfall of the species' usual
habitat, then it will have a longer taproot than
that of an average-sized false chicory plant.
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Re: False chicory's taproot [#permalink]

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New post 06 Apr 2011, 12:10
Is it (E)?

From the text we know "false chicory
plants that receive greater than twice the average rainfall of
the species' usual habitat always reach above-average"
"Always" is a key.
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 10 May 2012, 09:03
Can anyone shed light on this? I eliminated down to A and B and made an educated guess for A. I might be very wrong though. Thank you.
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 12 May 2012, 15:33
I picked E

But D seemed pretty close as well.

But in D, I felt the assumption was that "only" rainfall is a factor of plant height. this may not be true, not present in the text.

So I picked E. Anybody any light?
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 23 May 2012, 12:53
If A then B. The same analogy is present in option E which more or less restates the same thing from the passage.

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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 23 May 2012, 15:58
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I went with A. What is the OA?
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 10 Jun 2012, 00:07
i pick B here. i think B is the direct pre-phrase of the last sentence of the stimulus. whats the OA and source?
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 10 Jun 2012, 00:08
i pick B here. i think B is the direct pre-phrase of the last sentence of the stimulus. whats the OA and source?
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 10 Jun 2012, 08:42
vjsharma25 wrote:
False chicory's taproot is always one half as long as the
plant is tall. Furthermore, the more rain false chicory
receives, the taller it tends to grow. In fact, false chicory
plants that receive greater than twice the average rainfall of
the species' usual habitat always reach above-average
heights for false chicory.

If the statements above are true, then which one of the
following must also be true?

(A) If two false chicory plants differ in height, then
it is likely that the one with the shorter taproot
has received less than twice the average
rainfall of the species' usual habitat.
(B) If a false chicory plant has a longer-than
average taproot, then it is likely to have
received more than twice the average rainfall
of the species' usual habitat.
(C) It is not possible for a false chicory plant to
receive only the average amount of rainfall of
the species' usual habitat and be of above
average height.
(D) If the plants in one group of false chicory are
not taller than those in another group of false
chicory, then the two groups must have
received the same amount of rainfall.
(E) If a false chicory plant receives greater than
twice the average rainfall of the species' usual
habitat, then it will have a longer taproot than
that of an average-sized false chicory plant.



I have opted for E as it added both the statements quoted in premise. B & C are also good contender.
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 11 Jun 2012, 02:21
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The argument that contains many words makes the question become harder to solve. To make the argument easier. I will define the "False chicory plan" = X

=> Argument Evaluation: X's taproot = 1/2 X
Furthermore, the more rain X get, the taller X is
In fact, X that receives >2 average rainfall of usual reception is higher than the average height of X

(A) If two false chicory plants differ in height, then it is likely that the one with the shorter taproot has received less than twice the average rainfall of the species' usual habitat. => If 2 X differ in height, then it is likely that the X1 (shorter taproot) has received less than 2 average rainfall of X
=> These matter are not mentioned in the argument.

(B) If a false chicory plant has a longer-than average taproot, then it is likely to have received more than twice the average rainfall
of the species' usual habitat.=> If X's taproot is longer than X's average taproot, then it is likely to have received more than twice the average rainfall => This was stated in the argument. If you choose this choice as the correct answer. It's a trap. This answer is the reverse form of the argument.
(C) It is not possible for a false chicory plant to receive only the average amount of rainfall of the species' usual habitat and be of above
average height. => not mentioned
(D) If the plants in one group of false chicory are not taller than those in another group of false chicory, then the two groups must have
received the same amount of rainfall. => not mentioned
(E) If a false chicory plant receives greater than twice the average rainfall of the species' usual habitat, then it will have a longer taproot than
that of an average-sized false chicory plant. => If X receive >2 rainfall of the average X, then X will have longer than average (+ height of taproot = exactly 1/2 height of X) => the X'taproot will be higher than the average that of average X
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 17 Feb 2013, 00:15
I think the option B is wrong is because , there could be more than one reason(which might not have been mentioned in the passage) as to why the false chicory plant has a longer-than average height. Receiving more than twice the avg rainfall IMHO can't be treated as the one and only reason for the above average height of false chicory.
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 23 Apr 2013, 09:57
According to tuanquang269's reply, B and E are correct.

Is this a valid GMAT question ? Because GMAT won't support 2 choices. Any expert replies ?
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 24 Apr 2013, 22:17
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I think the answer must be E and not A ...The argument uses the strong wording in the last sentence ie "ALWAYS" the the plant will grow twice the avg height, when condition of rainfall is met.
But in A the uses of word "Likely" disqualifies it to be the answer.

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Re: False chicory's taproot is always one half as long as the [#permalink]

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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 24 Jan 2017, 14:26
Correct answer is E. More discussion here https://www.manhattanprep.com/lsat/foru ... t5097.html
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 01 Apr 2017, 09:46
Hi,

Can someone please help me understand why option B is incorrect here?

I think option E is too unlikely to mark as the correct answer. The whole question deals with likelihood and in E we have MUST. I would always prefer to avoid such extreme options. Please suggest.

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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 02 Apr 2017, 20:37
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Let's take a look at option B...

Quote:
(B) If a false chicory plant has a longer-than average taproot, then it is likely to have received more than twice the average rainfall of the species' usual habitat.


We know that "False chicory's taproot is always one half as long as the plant is tall.", so if a false chicory plant has a longer-than average taproot, then it is also taller than average. We know that "false chicory plants that receive greater than twice the average rainfall of the species' usual habitat always reach above-average heights", BUT we do not know that the reverse is true; in other words, we do not know that false chicory plants that reach above-average heights always (or even mostly) receive greater than twice the average rainfall of the species' usual habitat.

If that is unclear, imagine there are 100 false chicory plants, and 30 of those plants receive greater than twice the average rainfall of the species' usual habitat. According to the statements in the passage, those 30 plants MUST reach above-average heights. But that same group of 100 plants might include 50 plants that reach above-average heights even though they do NOT receive greater than twice the average rainfall of the species' usual habitat. Thus, statement B is not necessarily true.
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 02 Apr 2017, 23:29
GMATNinjaTwo wrote:
Let's take a look at option B...

Quote:
(B) If a false chicory plant has a longer-than average taproot, then it is likely to have received more than twice the average rainfall of the species' usual habitat.


We know that "False chicory's taproot is always one half as long as the plant is tall.", so if a false chicory plant has a longer-than average taproot, then it is also taller than average. We know that "false chicory plants that receive greater than twice the average rainfall of the species' usual habitat always reach above-average heights", BUT we do not know that the reverse is true; in other words, we do not know that false chicory plants that reach above-average heights always (or even mostly) receive greater than twice the average rainfall of the species' usual habitat.

If that is unclear, imagine there are 100 false chicory plants, and 30 of those plants receive greater than twice the average rainfall of the species' usual habitat. According to the statements in the passage, those 30 plants MUST reach above-average heights. But that same group of 100 plants might include 50 plants that reach above-average heights even though they do NOT receive greater than twice the average rainfall of the species' usual habitat. Thus, statement B is not necessarily true.


Thank you GMATNinjaTwo.

So, in that case should we consider E, even though it is too extreme/broad to consider? (It has MUST-- which makes me a bit dicey)
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Re: False chicory's taproot is always one half as long as the [#permalink]

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New post 03 Apr 2017, 07:03
abhimahna,

Quote:
So, in that case should we consider E, even though it is too extreme/broad to consider? (It has MUST-- which makes me a bit dicey)


Let's take a look at choice E...

Quote:
(E) If a false chicory plant receives greater than twice the average rainfall of the species' usual habitat, then it will have a longer taproot than that of an average-sized false chicory plant.


We know that "false chicory plants that receive greater than twice the average rainfall of the species' usual habitat ALWAYS reach above-average heights". So if a false chicory plant receives greater than twice the average rainfall of the species' usual habitat, then the plant WILL reach above-average heights; if the plant reaches above-average heights, the length of its taproot WILL also be above average (since "false chicory's taproot is ALWAYS one half as long as the plant is tall."). Thus, even though choice E sounds "extreme", it is supported by the statements in the passage.
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Re: False chicory's taproot is always one half as long as the   [#permalink] 03 Apr 2017, 07:03
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