Problem Solving

+ x y z
4 1-5 m
e 7 n 10
f 2 4 5

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

FYI

this is nbeen answered number of times in the preivuos post ! I request you to serach on the queetion

And headt start

this is a addition table ! first row first column add and solve for the unknown variables

U should get it ! if i am not wrong ! the answr is 5 ! if u can find i wil mre than happ to explaian !


Cheersa
vishu

Answer is 10. Please search the forum before posting a new thread...

further explanation necessary

Just correct it, it is not 4 but -4
Here is the link:
https://www.beatthegmat.com/addition-tab ... ight=table

First we can write 9 equations from this table (better not to do it during the test). You have 9 equations and 7 unknows so it's good.
1=x+4
-5=y+4
m=z+4
7=x+e
n=y+e
10=z+e
2=x+f
4=y+f
5=z+f

You look for
m+n=z+4+y+e

You directly have
x=-3
y=-9
7=x+e --> 7=-3+e --> e=10
n=y+e --> n=-9+10 -->n=1
10=z+e --> 10=z+10 --> z=0
m=z+4 --> m=4

So m+n=5

Good luck for your test tomorrow zag, trust you

All the best Zag.... wish u all the good luck ,.., i am sure u will do well...

Good luck.

thanks guys....i need all the luck and support!

all d best zag!!