document.write( "Question 709178: \r
\n" ); document.write( "\n" ); document.write( "The ratio of the length and breadth of a plot is 4 : 5. I f the length is 20 m less than the breadth, what
\n" ); document.write( "is the perimeter of the plot?
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Algebra.Com's Answer #436424 by checkley79(3341)\"\" \"About 
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4:5=(X-20):X CROSS MULTIPLY.
\n" ); document.write( "5(X-20)=4X
\n" ); document.write( "5X-100=4X
\n" ); document.write( "5X-4X=100
\n" ); document.write( "X=100 ANS FOR THE LONGER SIDE.
\n" ); document.write( "100-20=80 FOR THE SHORTER SIDE.
\n" ); document.write( "PROOF:
\n" ); document.write( "4/5=80/100
\n" ); document.write( "4/5=4/5
\n" ); document.write( "PERIMETER=2L+2W
\n" ); document.write( "P=2*80+2*100
\n" ); document.write( "P=160+200
\n" ); document.write( "P=360m. ANS.
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