Addition table

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Addition table

by anhe123 » Sat Aug 07, 2010 7:01 am
Image

In the addition table shown above, what is the value of m+n?

A) -19
B) 4
C) 5
D) 6
E) 22

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by selango » Sat Aug 07, 2010 8:11 am
According to the table,

4+X = 1 and 4+Y=-5--> X=-3 and Y=-9

E+X = 7, and X=-3--> E-3 = 7, or E=10.

E+Y = n ---> 10 + -9 = n ---> n=1

E+Z = 10 ---> 10+Z = 10 ---> Z=0

4+Z = m ---> 4+0 = m ---> m = 4

m=4,n=1-->m+n=5

Pick C
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by KrazyKarl » Mon Aug 09, 2010 11:21 pm
Whoa...is this an example of a GMAT question? Would they give instructions with that table? I'm not sure I understand what's even being asked here. Please tell me that they'd give extra directions!

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by anhe123 » Tue Aug 10, 2010 1:01 am
KrazyKarl wrote:Whoa...is this an example of a GMAT question? Would they give instructions with that table? I'm not sure I understand what's even being asked here. Please tell me that they'd give extra directions!
Thats all the information I got, from the GMATprep(TM).