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08 Dec 2010, 13:36
Kudos
Bookmarks
Hi all!
Knewton is starting a new challenge series within the GMAT Club forums -- each week, we'll post an extra-hard challenge question to help you test your skills. This week, try your hand at this tough CR question. 67.6% of Knewton students got this one wrong. Will you beat the odds?
Reply with your answers, questions, and thought processes below. We'll post a video explanation in a few days to let you know how you fared.
Good luck!
Knewton is starting a new challenge series within the GMAT Club forums -- each week, we'll post an extra-hard challenge question to help you test your skills. This week, try your hand at this tough CR question. 67.6% of Knewton students got this one wrong. Will you beat the odds?
Reply with your answers, questions, and thought processes below. We'll post a video explanation in a few days to let you know how you fared.
Good luck!
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.
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.
09 Dec 2010, 03:41
Kudos
Bookmarks
Hi Chris,
Tough one! I think OA is
Thought process:
This passage relies on drawing a conclusion based on analogy. 2 facts are : how forelimbs help Joeys - similarly forelimbs may also help baby Lions.
So the assumption has to be something that fills the gap between the fact and the conclusion.
Tough one! I think OA is
Thought process:
This passage relies on drawing a conclusion based on analogy. 2 facts are : how forelimbs help Joeys - similarly forelimbs may also help baby Lions.
So the assumption has to be something that fills the gap between the fact and the conclusion.
09 Dec 2010, 05:51
Kudos
Bookmarks
E it is. I had seen this q somewhere
