SOLUTION: Your aunt leaves 45 minutes before you and drives at 60 mph. You want to catch her in 4 hours. How fast do you need to drive? How far will you drive?

Question 360058: Your aunt leaves 45 minutes before you and drives at 60 mph. You want to catch her in 4 hours. How fast do you need to drive? How far will you drive?
Found 2 solutions by vleith, mananth:
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
How far will your have gone? She left 3/4 of an hour before you and will drive a total of 3/4 + 4 = 19/4 hours.
At 60mph, she will travel

miles
So the total distance is 285.
How fast do you have to drive to cover 285 miles in just 4 hours?

mph
Be careful of the speed limits! A few extra minutes is better than a speeding ticket!!

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
aunt 60 mph
in 3/4 hour she travels 3/4*60=45 miles
...
to catch up in 4 hours
..
catch up speed = 45/4
=11.25 mph
...
60+11.25= 71.25 mph
..
m.ananth@hotmail.ca
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