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OA wrong?

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OA wrong?

by adi_800 » Sat Aug 21, 2010 10:41 pm
What is the value of |x + 7|?
(1) |x + 3|= 14
(2) (x + 2)2 = 169

OA is D

I went for C
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Source: — Data Sufficiency |

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by Ian Stewart » Sun Aug 22, 2010 1:49 am
Where did you get the OA? Definitely wrong - should be C. From each statement, we get two different values of x (in statement 1, x can be 11 or -17, and in statement 2 x can be 11 or -15), each of which gives a different value for |x+7|. Combined, x must be 11, so |x+7| = 18.
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by adi_800 » Sun Aug 22, 2010 5:05 am
This one is from Sets...
I was wondering how can D be wrong..
thanks for your reply
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