Prep DS

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Prep DS

by gmattester » Thu Aug 28, 2008 11:41 am
x, 3, 1, 12, 8

If x is an integer, is the median of the 5 numbers shown greater than the
average (arithmetic mean) of the 5 numbers ?

(1) x > 6

(2) x is greater than the median of the 5 numbers.

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by gmattester » Thu Aug 28, 2008 12:27 pm
Can someone help me in this question...

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by ricaototti » Mon Sep 01, 2008 9:28 pm
I would say E....

So u guys think stats is too easy??? :D

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by P_mashru » Mon Sep 01, 2008 11:22 pm
IMO E

X is greter than median, hence x can not be median - which makes 8 as median

X can be any thing greter than 8 (greter than 12 too...)

let's say 9 - which makes mean as 31/5, which is lesser than median
let' say 13 - which makes mean as 7, which is lesser than median
let's say 22 - which makes mean as 46/5, which is greter than median

unconsistent results and hence E
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by Ian Stewart » Tue Sep 02, 2008 3:25 am
I posted a solution to this question here:

www.beatthegmat.com/x-3-1-12-8-t13506.html