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data sufficiency question

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Manager
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data sufficiency question [#permalink] New post 06 Mar 2004, 07:52
hi all,
I am confused by a question like this........

find the value of x:
a) (x-2)(x-3)=0
b)(x-2)(x-4) = 0

I read in one of the books (cant remember if it was PR or Kaplan) that if the values in two choices are the same then the answer for such a question should be C.........but shouldn't we have a single solution to determine the correct answer,,,,,,,,,so for a question like above what would be the answer......may be I am studying too much....... :lol:

monarc
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 [#permalink] New post 06 Mar 2004, 07:55
From a) x=2 or x=3. so it is insuff. by itself
from b) x=2 or x=4 so insuff. by itself
If we combined both together, we are sure that answer is suff. because only "2" appears twice in both. So C should be answer
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 [#permalink] New post 06 Mar 2004, 09:45
I concur with Paul...even OG provides the same reasoning.

Vivek.
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 [#permalink] New post 06 Mar 2004, 17:41
kind of an INTERSECTION of (1) and (2)
  [#permalink] 06 Mar 2004, 17:41
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