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Simple DS Problem, Can you Explain ?

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by gmataspirant » Wed Jun 11, 2008 1:20 pm
If x an z are integers, how many even integers y are there such that x < y < z ?

1. z-x = 4
2. x is odd

OA is C

Explanation given in PR Math workout is not convincing for me. Could anyone shed more light on this problem.

Thanks
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Source: — Data Sufficiency |
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by ptgbeauregard » Wed Jun 11, 2008 2:47 pm
Plug and play.

6<x<10

Only 8 is even.

7<x<11

8 and 10 are even.
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by gmataspirant » Thu Jun 12, 2008 3:55 am
You explanation states that answer is B, remember the official answer is C. Again it is not convincing.

Explanation Solicited...
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by durgesh79 » Thu Jun 12, 2008 5:41 am
may be leaf wasnt specific but the post is pointing towards C only.

The reason two number sets (6,10) and (7,11) are taken becuase the difference is 4 in both cases.
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