document.write( "Question 760463: A guys sold 2 watch for $240.00. 1st watch sold made 20% profit margin and 2nd watch was sold at 20% lost. How much dollar did the seller made (profit or lost)? \n" ); document.write( "

Algebra.Com's Answer #462712 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = the selling price of 1st watch
\n" ); document.write( "Let $\"+y+\"$ = the selling price of the 2nd watch
\n" ); document.write( "I'll say he makes a profit, $\"+P+\"$
\n" ); document.write( " $\"+P+=+.2x+-+.2y+\"$
\n" ); document.write( " $\"+x+%2B+y+=+240+\"$
\n" ); document.write( "---------------
\n" ); document.write( " $\"+y+=+240+-+x+\"$
\n" ); document.write( " $\"+P+=+.2x+-+.2%2A%28+240+-+x+%29+\"$
\n" ); document.write( " $\"+P+=+.2x+-+48+%2B+.2x+\"$
\n" ); document.write( " $\"+P+=+.4x+-+48+\"$
\n" ); document.write( "---------------
\n" ); document.write( "If the profit is zero, the $\"+x+=+120+\"$
\n" ); document.write( "If $\"+x+=+240+\"$ ( $\"+y+=+0+\"$ )
\n" ); document.write( " $\"+P+=+96+-+48+\"$
\n" ); document.write( " $\"+P+=+48+\"$ , which is 20% of 240\r
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