SOLUTION: A train leaves a station and travels north at 60km/hr. Four hours later, a second train leaves on a parallel track and travels north at 100km/hr. How far from the station will they

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Question 839315: A train leaves a station and travels north at 60km/hr. Four hours later, a second train leaves on a parallel track and travels north at 100km/hr. How far from the station will they meet ?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This lesson will help:

http://www.algebra.com/algebra/homework/word/travel/Uniform-Rates-Travel%3A-same-direction-but-different-travel-times-meet-when%3F.lesson

http://www.algebra.com/my/Uniform-Rates-Travel%3A-same-direction-but-different-travel-times-meet-when%3F.lesson?content_action=show_dev

A good data table can be like this:

___________________speed________time__________distance
Early Slow_________60___________t+4___________d=60%28t%2B4%29
Late Fast__________100___________t____________d=100t

Solve for t and then compute distance.