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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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13 Nov 2016, 06:41
mattapraveen wrote:
 + x y z 4 1 -5 m e 7 n 10 f 2 -4 5

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

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

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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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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Sometimes it takes a concept being explained in 15 different ways to achieve an 'ah hah' breakthrough moment and I am here to contribute one, of hopefully many, unique perspectives. I do not encourage or participate in posts that simply state "that was easy", or "relevant, out of scope, correct". I find that people - myself included - often have a difficult time truly understanding the fact that in CR/RC questions, there will be one very definitively black and white correct answer, just a there is in Quant. As a result, my posts are exclusively focused on CR and RC. There is no such thing as a 'kinda right' question and because of this, I contribute detailed posts on how I came to my answer in hopes that it will connect with someone.

Wishing everyone all the best
Re: In the addition table shown above, what is the value of m+n   [#permalink] 07 Aug 2019, 21:38

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