document.write( "Question 1073328: Two trains, one going from Boston to New York and the other going from New York to Boston, started their trips at exactly same time. Speed of the first train was 10 miles per hour less than twice the speed of the second train. How far from Boston station have they met in two hours, if the total distance between the cities along the rail road is 220 miles? \n" ); document.write( "

Algebra.Com's Answer #688158 by josgarithmetic(39625) $\"\"$ $\"About$

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r, the speed of the train going from New York to Boston\r
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document.write( "                     SPEED      TIME      DISTANCE\r\n" );
document.write( "Boston to NY        2r-10        2        2(2r-10)\r\n" );
document.write( "NY to Boston          r          2        2r\r\n" );
document.write( "Total                                     220\r\n" );
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\r
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\n" ); document.write( "\n" ); document.write( "The only unknown is r. Distance summation gives $\"highlight_green%282%282r-10%29%2B2r=220%29\"$ , and solving this gives $\"highlight_green%28r=40%29\"$ .\r
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\n" ); document.write( "\n" ); document.write( "To find how far from Boston the two trains meet, simply use $\"220-2r\"$
\n" ); document.write( " $\"220-2%2A40\"$
\n" ); document.write( " $\"220-80\"$
\n" ); document.write( " $\"highlight%28140%29\"$ \n" ); document.write( "

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