document.write( "Question 181901: Two airplanes leave chicago at 12 noon, one traveling west at 575 km/h and the other at 625 km/h. At what time will they be 300 km apart? \n" ); document.write( "
Algebra.Com's Answer #136523 by Alan3354(69443)\"\" \"About 
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Two airplanes leave chicago at 12 noon, one traveling west at 575 km/h and the other at 625 km/h. At what time will they be 300 km apart?
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\n" ); document.write( "Their speed relative to each other is the difference, 625 - 575, = 50 kph.
\n" ); document.write( "300/50 = 6 hours.
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