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gmatmania car problem

by pradeepkaushal9518 » Tue May 21, 2013 8:13 pm
https://gmatmania.com/Gmattopic_Detail.aspx?topicid=488

the link is working.....

How many of the 60 cars sold last month by a certain
dealer had neither power windows nor a stereo?

(1) Of the 60 cars sold, 20 had a stereo but not
power windows.

(2) Of the 60 cars sold, 30 had both power windows
and a stereo.
Last edited by pradeepkaushal9518 on Tue May 21, 2013 11:21 pm, edited 2 times in total.
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Source: — Data Sufficiency |

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by Brent@GMATPrepNow » Tue May 21, 2013 9:53 pm
I'm getting an error message when I click that link.
You may need to post the actual question.

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by Atekihcan » Tue May 21, 2013 11:46 pm
This is a problem from OG and much discussed in this forum.

Total = 60 = Only power window + Only stereo + Both + None
So, none = 60 - (Only power window + Only stereo + Both)

Both statements together tells us,
  • Only stereo = 20
    Both = 30
So, None = 60 - (Only power window + 20 + 30) = 10 - only power window

As we don't know the number of cars with only power window, we cannot answer the question.

Answer : E
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