document.write( "Question 560071: A person drives from point A to point B at 30 miles per hour.\r
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Algebra.Com's Answer #363659 by Edwin McCravy(20060) $\"\"$ $\"About$

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A person drives from point A to point B at 30 miles per hour.\r
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document.write( "He cannot possibly average 60 miles per hour, even if he could return\r\n" );
document.write( "on a jet plane traveling 500 miles per hour. \r\n" );
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document.write( "Here is why:\r\n" );
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document.write( "Suppose it is 30 miles from A to B.  Then to average 60 miles per hour\r\n" );
document.write( "for the round trip, he must go 30 miles and return 30 miles in 1 hour.\r\n" );
document.write( "He has just one hour to go and return.\r\n" );
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document.write( "But since he goes at 30 mph, he has already used up the entire hour just \r\n" );
document.write( "to get to B.  So there is no way he can average 60 miles per hour.\r\n" );
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document.write( "Edwin

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