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# What is the mean value of n-x, n-y, n-z, n-w? (1) The mean

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Intern
Joined: 21 Oct 2003
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Location: Israel
What is the mean value of n-x, n-y, n-z, n-w? (1) The mean [#permalink]

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31 Jan 2004, 06:44
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the mean value of n-x, n-y, n-z, n-w?
(1) The mean value of x, y, z, and w is n.
(2) n=280

Thank you,
N

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Manager
Joined: 26 Dec 2003
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31 Jan 2004, 07:03
is it A) Statement 1 alone is sufficient.

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Intern
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31 Jan 2004, 07:58
can you explain why?

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SVP
Joined: 16 Oct 2003
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31 Jan 2004, 09:44
n-x + n-y + n-z + n-w
4

4n - (w+x+y+z)
4

since
w+x+y+z = n
4

n - n =0, Hence the answer is A

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31 Jan 2004, 09:44
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