Question

Towns A and B are 400 miles apart. If a train leaves A in the direction of B at 50 miles

per hour, how long will it take before that train meets another train, going from B to A,
at a speed of 30 miles per hour?

Answer 1

from A :50/hour. *x(hour)
From B : 30/hour *x(hour)
50 *x +30 *x =400
80 *x=400
x=5(hour)
Then the train from A will make 50 *5=250 miles
(These is fisik)