document.write( "Question 877374: Rama buys a T.V at 20% discount of its value and sold it for 20% more than its value . Her profit percentage is? \n" ); document.write( "
Algebra.Com's Answer #529309 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The profit percentage would be:
\n" ); document.write( "( selling price - cost of TV ) / ( cost of TV )
\n" ); document.write( "Let \"+x+\" = cost of TV
\n" ); document.write( "She bought it for \"+x+-+.2x+=+.8x+\"
\n" ); document.write( "She sold it for \"+x+%2B+.2x+=+1.2x+\"
\n" ); document.write( "-------------------------------
\n" ); document.write( "profit % = \"+%28+1.2x+-+.8x+%29+%2F+.8x+\"
\n" ); document.write( "Divide top and bottom by \"+x+\"
\n" ); document.write( "\"+%28+1.2+-+.8+%29+%2F+.8+=+.4%2F.8+\"
\n" ); document.write( "\"+.4%2F.8+=+.5+\"
\n" ); document.write( "profit % = 50%\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );