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Updated on: 05 Sep 2011, 22:22
Originally posted by JessieKnewton on 29 Aug 2011, 08:57.
Last edited by bb on 05 Sep 2011, 22:22, edited 2 times in total.
Last edited by bb on 05 Sep 2011, 22:22, edited 2 times in total.
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Hey GMAT Club,
We know you guys are always looking for more difficult practice problems, so we dug through our question bank and found some good ones. Take a shot at this critical reasoning problem, and do your best to explain your answer choice as clearly and concisely as possible. At the end of the week, a GMAT Club moderator will choose the best answer, and the student who submitted it will receive a free Knewton t-shirt from our newly launched Knewton Store, as well as access to the GMAT Club Tests for 1 year. Good luck!
We know you guys are always looking for more difficult practice problems, so we dug through our question bank and found some good ones. Take a shot at this critical reasoning problem, and do your best to explain your answer choice as clearly and concisely as possible. At the end of the week, a GMAT Club moderator will choose the best answer, and the student who submitted it will receive a free Knewton t-shirt from our newly launched Knewton Store, as well as access to the GMAT Club Tests for 1 year. Good luck!
Just so you all know - we'll be announcing the winner on Tuesday (you guys get an extra day to think, thanks to the holiday weekend)! Keep the answers coming!
! |
The thread is closed for submissions. The winner will be announced on Tuesday. |
A newborn kangaroo, or joey, is born after a short gestation period of only 39 days. At this stage, the joey’s hind limbs are not well developed, but its forelimbs are well developed, so that it can can climb from the cloaca into its mother’s pouch for further development. The recent discovery that ancient marsupial lions were also born with only their forelimbs developed supports the hypothesis that newborn marsupial lions must also have needed to climb into their mothers’ pouches.
The argument in this passage relies on which of the following assumptions?
[A] All animals that are born after a short gestation period are born with some parts of their bodies underdeveloped.
[B] Well developed forelimbs would have been more advantageous to ancient marsupial lions than well developed hind limbs would have been.
[C] If the newborn marsupial lion did not climb into its mother’s pouch, then paleontologists would be able to find evidence of this fact.
[D] Newborn marsupial lions that crawled into their mothers’ pouches could not have done so had they not had only their forelimbs developed at birth.
[E] Newborn marsupial lions would not have had only their forelimbs developed if this development were of no use to the marsupial lions.
Looking forward to your answers!
Updated on: 30 Aug 2011, 11:43
Originally posted by gmatcracker24 on 30 Aug 2011, 09:24.
Last edited by gmatcracker24 on 30 Aug 2011, 11:43, edited 1 time in total.
Last edited by gmatcracker24 on 30 Aug 2011, 11:43, edited 1 time in total.
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E is the correct answer !!
The last sentence is the conclusion . : "the new born.........pounches."
A) Loser : author discusses only between kangaroo and lion but her we have "ALL"
B)Loser :False comparison.
C)Loser : Out of scope;we are not discussing about Paleontologists.
D) Loser : use of words : could ;could not :this doesn't give us certain answer
E) Correct : This is correct choice ;BY rephrasing we can see its the best
The last sentence is the conclusion . : "the new born.........pounches."
A) Loser : author discusses only between kangaroo and lion but her we have "ALL"
B)Loser :False comparison.
C)Loser : Out of scope;we are not discussing about Paleontologists.
D) Loser : use of words : could ;could not :this doesn't give us certain answer
E) Correct : This is correct choice ;BY rephrasing we can see its the best
30 Aug 2011, 20:18
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IMO E
The passage says about New Born Kangaroo - "its forelimbs are well developed, so that it can can climb from the cloaca into its mother's pouch for further development."
And then tries to relate this with the Marsupial Lion, concluding that "newborn marsupial lions must also have needed to climb into their mothers' pouches" due to the only reason that "ancient marsupial lions were also born with only their forelimbs developed"
The necessary assumption that connects the evidence to the conclusion is that there is indeed SOME reason for newborn marsupial lions to have developed forelimbs. If there is no reason for this, then the conclusion that the reason for lions' developed forelimbs is the same as the reason for kangaroos' falls apart and this reason can't apply.
So E is correct because it states that newborn marsupial lion's have only their forelegs developed because this of use to the marsupial lions. that's is why there is a reason for the developed forelimbs. This is the assumption that the argument depends , so IMO E is correct.
The passage says about New Born Kangaroo - "its forelimbs are well developed, so that it can can climb from the cloaca into its mother's pouch for further development."
And then tries to relate this with the Marsupial Lion, concluding that "newborn marsupial lions must also have needed to climb into their mothers' pouches" due to the only reason that "ancient marsupial lions were also born with only their forelimbs developed"
The necessary assumption that connects the evidence to the conclusion is that there is indeed SOME reason for newborn marsupial lions to have developed forelimbs. If there is no reason for this, then the conclusion that the reason for lions' developed forelimbs is the same as the reason for kangaroos' falls apart and this reason can't apply.
So E is correct because it states that newborn marsupial lion's have only their forelegs developed because this of use to the marsupial lions. that's is why there is a reason for the developed forelimbs. This is the assumption that the argument depends , so IMO E is correct.
