document.write( "Question 2190: a train traveled form its terminal to an ocean resort at 90/km/h and then returned at 72km/h. What is the rail distance between the train terminal and the ocean resort if the round trip travel time was 9 hours? \n" ); document.write( "
Algebra.Com's Answer #930 by gsmani_iyer(201)\"\" \"About 
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Let the distance between
\n" ); document.write( "terminal & Ocean resort = x Kms.\r
\n" ); document.write( "\n" ); document.write( "time taken from terminal
\n" ); document.write( "to ocean resort at 90 Kms/h = \"x%2F90\" Hrs. (Because Speed * time = Distance)\r
\n" ); document.write( "\n" ); document.write( "time taken from ocean resort
\n" ); document.write( "to terminal at 72 Kms/h = \"x%2F72\" Hrs.\r
\n" ); document.write( "\n" ); document.write( "so total hours taken for
\n" ); document.write( "round trip travel = \"x%2F90\" + \"x%2F72\" = 9 Hrs.
\n" ); document.write( "(taking out the LCM, we get)
\n" ); document.write( "\"%284x%2B5x%29%2F360\" = 9\r
\n" ); document.write( "\n" ); document.write( "= \"9x%2F360\" = 9\r
\n" ); document.write( "\n" ); document.write( "= \"x%2F40\" = 9\r
\n" ); document.write( "\n" ); document.write( "so x = 9 * 40 = 360\r
\n" ); document.write( "\n" ); document.write( "so, the distance between the terminal
\n" ); document.write( "and the ocean resort = 360 Kms. Ans.
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