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GMATPrep - addition table shown above

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by jsl » Sun Nov 02, 2008 11:22 am
OA C

Is there a quick way to do this question? Obviously, you could work through the additions but I'm sure there must be a trick - can someone spot it?
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Re: GMATPrep - addition table shown above

by logitech » Sun Nov 02, 2008 11:32 am
jsl wrote:OA C

Is there a quick way to do this question? Obviously, you could work through the additions but I'm sure there must be a trick - can someone spot it?
well - let me try:


m + n = ( 4 +z ) + ( y + e )

So since we have matrix, I think I can re-arrange this:

m+ n = ( 4 + y ) + ( z + e ) :idea:

m + n = - 5 + 10

m + n = 5 :!:
LGTCH
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Re: GMATPrep - addition table shown above

by jsl » Sun Nov 02, 2008 4:09 pm
logitech wrote:
jsl wrote:OA C

Is there a quick way to do this question? Obviously, you could work through the additions but I'm sure there must be a trick - can someone spot it?
well - let me try:


m + n = ( 4 +z ) + ( y + e )

So since we have matrix, I think I can re-arrange this:

m+ n = ( 4 + y ) + ( z + e ) :idea:

m + n = - 5 + 10

m + n = 5 :!:
Wow thanks! I guess I should just write out what I see!
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Re: GMATPrep - addition table shown above

by dmateer25 » Sun Nov 02, 2008 5:01 pm
logitech wrote:
jsl wrote:OA C

Is there a quick way to do this question? Obviously, you could work through the additions but I'm sure there must be a trick - can someone spot it?
well - let me try:


m + n = ( 4 +z ) + ( y + e )

So since we have matrix, I think I can re-arrange this:

m+ n = ( 4 + y ) + ( z + e ) :idea:

m + n = - 5 + 10

m + n = 5 :!:
Hi Logitech,

Could you explain this:

m+ n = ( 4 + y ) + ( z + e )

m + n = - 5 + 10

I don't see where the -5 and 10 are coming from.
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Re: GMATPrep - addition table shown above

by logitech » Tue Nov 04, 2008 12:02 pm
dmateer25 wrote:
logitech wrote:
jsl wrote:OA C

Is there a quick way to do this question? Obviously, you could work through the additions but I'm sure there must be a trick - can someone spot it?
well - let me try:


m + n = ( 4 +z ) + ( y + e )

So since we have matrix, I think I can re-arrange this:

m+ n = ( 4 + y ) + ( z + e ) :idea:

m + n = - 5 + 10

m + n = 5 :!:
Hi Logitech,

Could you explain this:

m+ n = ( 4 + y ) + ( z + e )

m + n = - 5 + 10

I don't see where the -5 and 10 are coming from.
See the attached picture.
Attachments
matrix.jpg
LGTCH
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"DON'T LET ANYONE STEAL YOUR DREAM!"
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by mankey » Wed Mar 07, 2012 10:07 pm
Request someone to please explain this question.

Regards.
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by kjallow » Thu Mar 08, 2012 9:34 am
hi Mankey,

this is how i understand the first response to the post -

from the table:

m = 4 + z
n = e + y

therefore m + n = (4 + z) + (e + y)

since the operation is addition, re-arranging the terms will not affect the sum.

so, you can re-arrange the terms as shown below to allow you to substitute the terms with the corresponding figures from the matrix

m + n = (4 + y) + (z + e)

from the table 4 + y = -5
from the table z + e = 10

therefore

m + n = -5 + 10
m + n = 5

hope that helps..
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