Problema Solution
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 85 miles per hour. The eastbound train travels at 105 miles per hour. How long will it take for the two trains to be 418 miles apart?
Answer provided by our tutors
Speed (West) = 85 mph
Speed ( East) = 105 mph
Let time = t hours
Total distance = Speed (west) * t + Speed (East) * t = 418
or
85 * t + 105 * t = 418
190 * t = 418
or t = 2.2 hours (answer)