Problema Solution
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per hour. The eastbound train travels at 70 miles per hour. How long will it take for the two trains to be miles apart?
Answer provided by our tutors
The distance two trains are apart is not given, we assume it's D.
We assume the time is t.
The equation is
70t + 80t = D
t = D/150
So the result is D/150 hour, if D is given, we can calculate the time