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There is a very long line that has been forming all night to

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Manager
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There is a very long line that has been forming all night to [#permalink] New post 29 Aug 2003, 11:19
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There is a very long line that has been forming all night to buy tickets for a concert. At 7:00 am no more people were allowed to join the line. At 8:00 am two ticket windows opened serving the customers in the line. At 5:00 pm, the last person was done buying his tickets. Assuming the rate that each window helped every customer was the same, how much shorter, in hours, would this process have taken had there been one more window open all day?

(A) 2.5
(B) 3.0
(C) 3.5
(D) 3.66667
(E) 3.75
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Sept 3rd


Last edited by mciatto on 29 Aug 2003, 11:31, edited 1 time in total.
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 [#permalink] New post 29 Aug 2003, 11:30
It would have taken 6 hours instead of 9, so 3 hours less
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 [#permalink] New post 29 Aug 2003, 12:00
Correct, now let's say that 7 more windows opened. How much shorter than the original scenario of only two windows being open. (next person show your work please)

Answer choices:

(A) 4
(B) 5
(C) 5.5
(D) 6.5
(E) 7
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Sept 3rd

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 [#permalink] New post 29 Aug 2003, 13:40
2 lines*t persons/line*9hours=9 lines*t persons/line*H hours
H=2
answer: 9-2=7
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 [#permalink] New post 03 Sep 2003, 12:07
Can you explain the first question :)
  [#permalink] 03 Sep 2003, 12:07
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