document.write( "Question 1034626: Tom sold a watch to Harry with a profit of 20% and Harry sold to Peter with a profit of 30%. If Peter paid $780, how much did Tom pay for the watch? \n" ); document.write( "
Algebra.Com's Answer #649307 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "130% = $780
\n" ); document.write( "1% = 780/130
\n" ); document.write( "100% = 780/130 x 100
\n" ); document.write( "= $600
\n" ); document.write( "This is what Harry paid for the watch.
\n" ); document.write( "120% = $600
\n" ); document.write( "1% = 600/120
\n" ); document.write( "100% = 600/120 x 100
\n" ); document.write( "= $500
\n" ); document.write( "This is what Tom paid for the watch.
\n" ); document.write( "Hope this helps :-)
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