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DS on Solving addition table with unknown

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Source: — Data Sufficiency |
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by xcusemeplz2009 » Fri Nov 06, 2009 9:01 am
IMO C
OA pls
It does not matter how many times you get knocked down , but how many times you get up
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by Harbinder » Fri Nov 06, 2009 12:52 pm
I also think it is C
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by sanjana » Mon Nov 09, 2009 7:16 pm
From the table
d+z=m
e+y=n
We need to find m+n = d+z+e+y

Statement 1
-----------
d+y = -3 not sufficient since we dont have the values
of z and e

Statement 2
-----------

e+z = 12 not sufficient since we dont have the values of d and y

Combing 1 and 2,
we can find m+n

Hence C
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