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

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Re: In the addition table shown above, what is the value of m+n  [#permalink]

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New post 13 Nov 2016, 06:41
mattapraveen wrote:
+xyz
41-5m
e7n10
f2-45

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

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



Answer: option C

Check solution as attached
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Re: In the addition table shown above, what is the value of m+n  [#permalink]

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New post 07 Aug 2019, 21:38
I was baffled by this question, and after reading all these posts, I realized how out of left field my thoughts were. For some reason, I understood this as :

x = 1+7+2
y = (-5)+n+(-4)
z = m + 10 +5

4 = 1+(-5)+m
e = 7+n+10
f = 2+(-4)+5

m = 8
z = 23
...and I realize I have deeply misunderstood this.

Did anyone go down this path as well? I think what what Bunuel will say is that I should have clearly realized that after setting the equations, nothing would work and hence I misunderstood...=\
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Re: In the addition table shown above, what is the value of m+n   [#permalink] 07 Aug 2019, 21:38

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