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computer and printers

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by gmat009 » Sat Nov 15, 2008 9:38 pm
If company M ordered a total of 50 computer and printers and company N ordered a total of 60 computer and printers. How many computers did M ordered.

a) Company M and Company N ordered the same number of computers
b) Company N ordered 10 more printers than Company M
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Source: — Data Sufficiency |
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by cramya » Sat Nov 15, 2008 9:46 pm
I am getting C) . OA?
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by gmat009 » Sat Nov 15, 2008 9:49 pm
cramya wrote:I am getting C) . OA?
Can you plz. explain. I am getting E becoz according to me both equations are saying same thing
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by stop@800 » Sat Nov 15, 2008 10:30 pm
The answer has to be E

Here goes an example


A Computers: 20
A Printers: 30
A total: 50

B Computers: 20
B Printers: 40
B total: 60

or may be

A Computers: 10
A Printers: 40
A total: 50

B Computers: 10
B Printers: 50
B total: 60
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by cramya » Sat Nov 15, 2008 10:33 pm
Gmat009,
You are absolutely correct(STATEMENT I AND II lead us to the same thing)

It is E) Whats the source and do u have the OA?

mp + mc = 50 i.e mp = 50-mc
np + nc = 60 i.e np = 60-nc

Stmt I

mc = nc

Could be 10mc 10nc 40mp 50np
(or) 20mc 20nc 30mp 40np

INSUFF

Stmt II

np = mp+10

Again wihtout going in to any equations

The same eg aplies

Could be 10mc 10nc 40mp 50np
(or) 20mc 20nc 30mp 40np

INSUFF


E)
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by aj5105 » Fri Jan 16, 2009 1:27 am
(E)
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by missrochelle » Mon Oct 25, 2010 12:07 pm
On this question it seems REALLY easy to me to fall into the 4 variable, 4 equation trap.

What is the "giveaway" in the problem that alerts you to look out for that ? The fact that Statement 1 says Cm=Cp??

Just wondering because I don't usually "CHECK" every equation fits, unless its obvious (i.e. one is a multiple of the other).... that may be a takeaway in of itself!
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by jeetu_vishnoi » Mon Oct 25, 2010 2:02 pm
E becoz it is not possible to give a definite answer by given both conditions
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