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GMAT Prep problem

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Master | Next Rank: 500 Posts
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by dv2020 » Fri Jun 03, 2011 10:07 am
What is the value of m+n

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


Had absolutely no clue on this one

made a grid & attached hope it makes more sense now...
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Last edited by dv2020 on Mon Jun 06, 2011 3:43 am, edited 2 times in total.
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by cans » Fri Jun 03, 2011 10:16 am
I think there is some problem with the question.
Can you please post it again...
If my post helped you- let me know by pushing the thanks button ;)

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Cans!!
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by Frankenstein » Fri Jun 03, 2011 10:21 am
Hi,
x+4=1 =>x=-3
y+4=-5=>y=-9
z+4=m=>z=m-4
e+x=7=>e=7-x=10
e+y=n=>n=10-9=1
e+z=10=>10+z=10=>z=0
As z=m-4, m=4

So, m+n=4+1 = 5
Cheers!

Things are not what they appear to be... nor are they otherwise
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by dv2020 » Fri Jun 03, 2011 10:28 am
cans wrote:I think there is some problem with the question.
Can you please post it again...
its basically a grid i have made only one horizontal line in the top row there will be vertical lines dividing all the columns i hope it makes sense now otherwise i will make it on word
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by dv2020 » Fri Jun 03, 2011 10:31 am
Frankenstein wrote:Hi,
x+4=1 =>x=-3
y+4=-5=>y=-9
z+4=m=>z=m-4
e+x=7=>e=7-x=10
e+y=n=>n=10-9=1
e+z=10=>10+z=10=>z=0
As z=m-4, m=4

So, m+n=4+1 = 5
Thanks man..
I knew this was a very simple one but it did nt strike me in real time I guessed and moved on.....
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by cans » Fri Jun 03, 2011 10:37 am
+ x y z
4 1 -5 m
e 7 n 10
f 2 -4 5

x+4=1 -> x=-3 ; y+4 =-5 -> y=-9 ; m=z+4
x+e=7 -> e=10 ; y+e=n ->n=1 ; z+e=10 -> z=0
m+n = z+4 + n = 0+4+1 = 5
IMO 5
If my post helped you- let me know by pushing the thanks button ;)

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by breakkgmat » Sat Jun 04, 2011 11:54 am
Thanks guys.I had trouble with this one too.It seems to be an easy one.but understanding the pattern is what we need..
Appreciate it..
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by vzzai » Sun Jun 05, 2011 1:22 am
Couldn't grasp the question in your first post. :)
You may want to create the grid in MS paint/ppt/photoshop and upload!

IMO 5.
Thank you,
Vj
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by aftableo2006 » Sun Jun 05, 2011 11:26 pm
without the grid its difficult to understand the question
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