document.write( "Question 636727: The difference between 3/4 of a line and 2/5 of the same line is 28cm.Find the length of the line. \n" ); document.write( "
Algebra.Com's Answer #401192 by sachi(548)\"\" \"About 
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let the line is x cm
\n" ); document.write( "then 3x/4-2x/5=28
\n" ); document.write( "or 15x-8x=28*5*4=560
\n" ); document.write( "or x=560/7=80 cm ans
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