document.write( "Question 1166735: A northbound train and a southbound train meet each other on parallel tracks heading in opposite directions. The northbound train travels 6 miles per hour faster than the southbound train. After 2 hours, they are 232 miles apart. At what speeds are the two trains traveling?
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Algebra.Com's Answer #791268 by ikleyn(52852)\"\" \"About 
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document.write( "Let \"r\" be the rate of the slower train, in miles per hour.\r\n" );
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document.write( "Then the rate of the faster train is (r+6) miles per hour.\r\n" );
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document.write( "The total distance equation is\r\n" );
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document.write( "    2r + 2*(r+6) = 232   miles\r\n" );
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document.write( "saying that partial traveled distances sum up to the total separation distance.\r\n" );
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document.write( "The setup is just done, and what follows is the solution to the equation, step by step\r\n" );
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document.write( "    2r + 2r + 6 = 232\r\n" );
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document.write( "    4r          = 232 - 12\r\n" );
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document.write( "    4r          = 220\r\n" );
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document.write( "     r          = 220/4 = 55 miles per hour.\r\n" );
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document.write( "ANSWER.  The slower (the southbound) train's rate is 55 mph.\r\n" );
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document.write( "         The faster (the northbound) train's rate is 55 + 6 = 61 mph.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For simple Travel @ Distance problems,  see introductory lessons \r
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\n" ); document.write( "\n" ); document.write( "Read them and learn once and for all from these lessons on how to solve simple Travel and Distance problems.\r
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\n" ); document.write( "\n" ); document.write( "I wrote my solution specially in this way to show that even the solution to a standard trivial routine problem
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