Addition Table

[PankajRai]

What is value in m+n in addition table below? I am completely clueless here.
(+) x y z
4 1 -5 m
e 7 n 10
f 2 -4 5

[Anurag@Gurome]

From the table,

• y + 4 = -5 .......... (1)
  z + 4 = m .......... (2)
  y + e = n .......... (3)
  z + e = 10 .......... (4)

Hence, adding (1) and (4), (z + y + e + 4) = 10 - 5 = 5
And, adding and (2) and (3), (m + n) = z + y + e + 4 = 5

Hence, the value of (m + n) is 5.

[casperkamal]

Just to prevent others from getting confused as I did, I have created an image of it to make it understandable.



You can also look here for an alternate way to resolve...not so different but just for you to know

https://www.manhattangmat.com/forums/in- ... -t470.html