A plane flies 300 mi in 4 hrs with the wind, 5 hrs against  TOPIC_SOLVED

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A plane flies 300 mi in 4 hrs with the wind, 5 hrs against

Postby andyjay on Sat Mar 14, 2009 8:07 pm

I need help with a word problem...

A plane flies 300 miles in 4 hours with the wind. Against the wind the plane flies the same distance in 5 hours. What is the rate of the wind?

I would appreciate the help. Thanks.
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Postby stapel_eliz on Sat Mar 14, 2009 11:03 pm

andyjay wrote:A plane flies 300 miles in 4 hours with the wind. Against the wind the plane flies the same distance in 5 hours. What is the rate of the wind?

Try using the standard set-up for "distance" word problems:

--------+-----+-------+---+
########| d = r * t |
--------+-----+-------+---+
with | 300 | p + w | 4 |
--------+-----+-------+---+
against | 300 | p - w | 5 |
--------+-----+-------+---+

...where "p" is the rate of the plane, and "w" is the rate of the wind. :wink:
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