SOLUTION: The Reeds are moving across the country. Mr. Reed leaves 4.5 hours before Mrs. Reed. If he averages 40mph and she averages 90mph, how many hours will it take Mrs. Reed to catch u
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Question 1153414: The Reeds are moving across the country. Mr. Reed leaves 4.5 hours before Mrs. Reed. If he averages 40mph and she averages 90mph, how many hours will it take Mrs. Reed to catch up to Mr. Reed? Answer by ikleyn(52803) (Show Source):
Since Mr.Reed started 4.5 hours before Mrs.Reed, he has head start of 4.5*40 = 180 miles.
Due to the difference in their rates (90-40) = 50 miles per hour,
this distance between them decreases 50 miles each hour.
Hence, Mrs.Read will catch up Mt.Reed in = hours = 3 hours and 36 minutes. ANSWER
