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# Median: What is value of X

Author Message
Manager
Joined: 12 Apr 2006
Posts: 216
Location: India
Followers: 1

Kudos [?]: 29 [0], given: 17

Median: What is value of X [#permalink]

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24 Jun 2006, 03:06
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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SVP
Joined: 01 May 2006
Posts: 1796
Followers: 9

Kudos [?]: 154 [0], given: 0

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24 Jun 2006, 05:13
(A) for me,

median = (8-6) / 2 = 7
average = (4 + 5 + 6 + 8 + 10 + x) / 6 = (33 + x)/6

From the problem, we have also :

median = 6/7 * average
<=> 7 = 6/7 * (33 + x)/6
<=> 49 = 33 + x
<=> x = 16
Manager
Joined: 11 Oct 2005
Posts: 94
Followers: 1

Kudos [?]: 4 [0], given: 0

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24 Jun 2006, 09:59
Same A - well explained
Senior Manager
Joined: 07 Apr 2006
Posts: 499
Followers: 1

Kudos [?]: 8 [0], given: 0

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24 Jun 2006, 10:45
A - exactly accoring to the explanation - did u guess 16 or something and didnt understand why it was right?
Senior Manager
Joined: 16 Apr 2006
Posts: 277
Followers: 2

Kudos [?]: 205 [0], given: 2

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25 Jun 2006, 16:04
Quote:
(A) for me,

median = (8-6) / 2 = 7
average = (4 + 5 + 6 + 8 + 10 + x) / 6 = (33 + x)/6

From the problem, we have also :

median = 6/7 * average
<=> 7 = 6/7 * (33 + x)/6
<=> 49 = 33 + x
<=> x = 16

(A). Same explanation just correcting the typo, median = (8+6) / 2 = 7
_________________

Trying hard to achieve something unachievable now....

25 Jun 2006, 16:04
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