document.write( "Question 31827: The selling price was $108. If the markup was 20 percent of the purchase price, what was the purchase price? What was the markup? \n" ); document.write( "
Algebra.Com's Answer #18491 by mukhopadhyay(490)\"\" \"About 
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Assume purchase price as x;
\n" ); document.write( "x+20%x=108
\n" ); document.write( "=>x+.2x=108
\n" ); document.write( "=>1.2x=108
\n" ); document.write( "=>x=108/1.2=90
\n" ); document.write( "The markup was $108-$90=$18
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