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A series of 5 numbers is 3, 4, 5, 5, x, is the range greater

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Senior Manager
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A series of 5 numbers is 3, 4, 5, 5, x, is the range greater [#permalink] New post 06 Jun 2011, 10:53
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A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

45% (02:56) correct 55% (01:55) wrong based on 10 sessions
A series of 5 numbers is 3, 4, 5, 5, x, is the range greater than 2?
I - the median of the numbers is greater than the mean
II - the median is 4

Hey guys,

Any good way to do it quickly?
[Reveal] Spoiler: OA
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Senior Manager
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Re: Range [#permalink] New post 06 Jun 2011, 11:32
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From B it is easy to determine that its not sufficient alone. the value of x can be for example 2, 3 or 4.

For A, i only have one method of solution, that is 2 plug in atleast two different values of x and try to prove the statement otherwise. And the statement doesn't suffice.
Senior Manager
Senior Manager
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Joined: 08 Nov 2010
Posts: 422
WE 1: Business Development
Followers: 7

Kudos [?]: 39 [0], given: 161

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Re: Range [#permalink] New post 06 Jun 2011, 11:42
Isnt there a more "mathematical" way to increase certainty?
Re: Range   [#permalink] 06 Jun 2011, 11:42
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A series of 5 numbers is 3, 4, 5, 5, x, is the range greater

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