GMATNinja wrote:
Many of the explanations here are completely correct, so I'm not sure that I have anything astoundingly new to add to the discussion. But we've had a few requests for expert help, so I'll give this a whirl.
For Arpit, among others: I think that part of the confusion is that we're looking for an assumption that'snecessary . That doesn't always mean that it's going to be 100% airtight, or that you'll be able to reach the conclusion with 100% certainty based on that assumption. But the correct answer will be something that'sneeded to draw the conclusion, even if it's not enough by itself.
In other words: without that assumption, the conclusion couldn't hold.
I see lingering doubts in the thread about why (E) is wrong and why (A) is right.
Let's start with(E):
Quote:
(E.) For all nurseries in North America that specialize in clematis, at least 10% of the clematis plants they sell arejackmanii.
This is admittedly a little bit tempting: sure, it would strengthen the argument.
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Statistics : Posted by shvm_sin7 • on 04 Aug 2015, 23:22 • Replies 47 • Views 83639









