Problem Solving (PS) | Re: If two trains are 120 miles apart and are traveling toward each other

Relative speed of the two trains = 30 + 40 = 70 miles per hour

In the last 1 hour before they meet, the trains together have to travel for 1 hour at a speed of 70 miles per hour.

Hence they will be 70 miles apart,1 hour before they meet.

Answer E.


Thanks,
GyM
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