Asked by LIbby

Two trains start from the same place at the same time. They travel i~ opposite directions. One
averages 60 miles per hour and the other averages 80 miles per hour. After how long will they
be 420 miles apart?
Answered by Reiny
They each travel for t hours

distance covered by first train = 60 t miles
distance covered by 2nd train = 80t miles

60t+80t = 420
140t = 420
t = 3

3 hours.
Answered by Anonymous
wroung