document.write( "Question 972191: 16 pens were bought for $5 each and sold at 4 for $30 what is the percentage profit.
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Algebra.Com's Answer #594556 by josmiceli(19441) $\"\"$ $\"About$

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The cost is:
\n" ); document.write( " $\"+16%2A5+=+80+\"$
\n" ); document.write( "The selling price is:
\n" ); document.write( " $\"++30%2A%2816%2F4%29+=+120+\"$
\n" ); document.write( "In dollars, the profit is:
\n" ); document.write( " $\"+120+-+80+=+40+\"$
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\n" ); document.write( "The % profit is:
\n" ); document.write( " $\"+40%2F80+=+.5+\"$
\n" ); document.write( " $\"+.5%2A%28100%29+=+50+\"$
\n" ); document.write( "50% profit\r
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