<PRE><B>Question 900116</B>
How long does it take for 1 person to paint
1 ( or any number ) of walls?
You need that information
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Suppose:
1 person paints 1 wall in 1 hour
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15 people will paint 1 wall in 1/15 of an hour
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So, it will take them 15 times as long
to paint 15 walls, so
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15 people paint 15 walls in 1 hour ( 60 minutes )

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