Homework Help: math

Posted by John on Monday, December 5, 2011 at 2:16pm.

Two trains depart at the same time from the same station and travel in opposite directions. One train travels 25 mph faster than the other train. After 2 hours the trains are 162 miles apart. Find the speed of each train.

math - Steve, Monday, December 5, 2011 at 3:06pm
If they travel in opposite directions, then just add their distances

distance = speed * time

2x + 2(x+25) = 162
4x + 50 = 162
4x = 112
x = 28

so, the slow train travels 28 mph
the fast train travels 53 mph

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