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# If the average (arithmetic mean) of 5 different numbers is

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Manager
Joined: 13 Apr 2008
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If the average (arithmetic mean) of 5 different numbers is [#permalink]

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01 Jul 2008, 03:16
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If the average (arithmetic mean) of 5 different numbers is 12, what is the median of the 5
numbers?
(1) The median of the 5 numbers is equal to 1/3 of the sum of the 4 numbers other than the
median.
(2) The sum of the 4 numbers other than the median is equal to 45.
SVP
Joined: 17 Jun 2008
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01 Jul 2008, 03:22

If average of 5 different numbers is 12 then sum of these numbers will be 60.

Stmt1: If x is the sum of 4 numbers is x then median (m) = x/3

Now x + x/3 = 60....solve for x.

Stmt 2: if m is median then m + 45 = 60. Solve for m.
Manager
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01 Jul 2008, 03:32
Thanks scthakur!

OA is D.
Re: DS-Mean & Median   [#permalink] 01 Jul 2008, 03:32
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