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if S is a set of 4 numbers w,x,y and z, is the range of the

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Director
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if S is a set of 4 numbers w,x,y and z, is the range of the [#permalink] New post 24 Mar 2005, 18:18
if S is a set of 4 numbers w,x,y and z, is the range of the numbers in S greater than 2?

(1) w-z>2
(2)z is the least number in S
Director
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 [#permalink] New post 24 Mar 2005, 19:15
hmmm, is it safe to assume the set is already sorted in ascending order? Are we allowed to assume on the gmat? if not the answer is (E)..nothing tells us that w is the smallest or largest number
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 [#permalink] New post 24 Mar 2005, 19:21
Folaa3 wrote:
hmmm, is it safe to assume the set is already sorted in ascending order? Are we allowed to assume on the gmat? if not the answer is (E)..nothing tells us that w is the smallest or largest number


it doesnot matter whether the set is sorted or not, if the difference of any two elements of the set is more than two, the range is more then 2.
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 [#permalink] New post 24 Mar 2005, 20:57
MA wrote:
Folaa3 wrote:
hmmm, is it safe to assume the set is already sorted in ascending order? Are we allowed to assume on the gmat? if not the answer is (E)..nothing tells us that w is the smallest or largest number


it doesnot matter whether the set is sorted or not, if the difference of any two elements of the set is more than two, the range is more then 2.


Great answer :-D
  [#permalink] 24 Mar 2005, 20:57
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