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M70-29

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Math Expert
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Joined: 02 Sep 2009
Posts: 56341
M70-29  [#permalink]

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New post 04 Sep 2018, 01:31
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

44% (01:04) correct 56% (05:41) wrong based on 9 sessions

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Math Expert
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Joined: 02 Sep 2009
Posts: 56341
Re M70-29  [#permalink]

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New post 04 Sep 2018, 01:31
Official Solution:


We’ll go for LOGICAL because we can use the logic of median and average.

In a set of consecutive integers, the average and the median are the same. Therefore, (1) is sufficient to give us the median. (B), (C) and (E) are eliminated.

(2) is also sufficient on its own, as we know that the set of consecutive integers goes from 7 to 19: if we know all the numbers in set A, that’s enough in order to find its median. (A) is also eliminated.


Answer: D
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Re: M70-29  [#permalink]

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New post 25 Dec 2018, 22:29
I dont understand s1, we dont have the value of n, so how can u solve it? Pls clarify this more.
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Re: M70-29   [#permalink] 25 Dec 2018, 22:29
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M70-29

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