document.write( "Question 1188032: An express train and a local train leave Kingston to travel to Negril. The express train can make the trip in 4 hours and the local train takes 5 hours for the trip. The speed of the express train is 12 kilometers per hour faster than the speed of the local train.
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Algebra.Com's Answer #819086 by ikleyn(52787) $\"\"$ $\"About$

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\n" ); document.write( "An express train and a local train leave Kingston to travel to Negril. The express train can make the trip in 4 hours
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document.write( "Let x be the speed of the local train, in km/h\r\n" );
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document.write( "Then the speed of the express train is (x+12) km/h.\r\n" );
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document.write( "Write the distance equation\r\n" );
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document.write( "    4*(x+12) = 5x.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    4x + 48 = 5x\r\n" );
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document.write( "      48    = 5x - x\r\n" );
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document.write( "       x    = 48.\r\n" );
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document.write( "ANSWER.  The speed of the local train is  48 km/h;  the speed of the express train is 48+12 = 60 km/h.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For simple Travel & Distance problems, see introductory lessons \r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems \r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems for two bodies moving in opposite directions \r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems for two bodies moving in the same direction (catching up)\r
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\n" ); document.write( "\n" ); document.write( "You will find the solutions of many similar problems there.\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( "Become an expert in this area.\r
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