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# If x and y are intergers, I am sure that they can be 0

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Manager
Joined: 03 Jan 2008
Posts: 109
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If x and y are intergers, I am sure that they can be 0 [#permalink]

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02 Apr 2008, 19:00
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If x and y are intergers, I am sure that they can be 0 (because 0 is an interger).
However I dont understand why this one has D as OA??
Does GMAT define that Intergers do not include 0 ?

If the average (arithmetic mean) of positive integers x, y, and z is 10, what is the greatest possible value of z ?
A. 8
B. 10
C. 20
D. 28
E. 30
Director
Joined: 10 Sep 2007
Posts: 943
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02 Apr 2008, 20:52
Question says "positive integers". 0 is neither positive nor negative. So cannot be considered here. So x=y=1 are the least possible value for x and y.

1 + 1 + z/3 = 10
=> 2+z = 30
=> z = 28

Manager
Joined: 03 Jan 2008
Posts: 109
Followers: 1

Kudos [?]: 65 [0], given: 0

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03 Apr 2008, 07:55
abhijit_sen wrote:
Question says "positive integers". 0 is neither positive nor negative.

Tks. That's what I need
Re: Intergers!!   [#permalink] 03 Apr 2008, 07:55
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