document.write( "Question 198358: If profit of 40% on selling price is equivalent to what percent profit on cost price. \n" ); document.write( "
Algebra.Com's Answer #148904 by RAY100(1637)\"\" \"About 
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Let sp = c + p,,, selling price = cost + profit
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\n" ); document.write( "given,,,p/sp = 40 % =.40
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\n" ); document.write( "subst, p = sp -c
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\n" ); document.write( "(sp-c) / sp = .4
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\n" ); document.write( "sp - c = .4 sp
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\n" ); document.write( ".6 sp = c
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\n" ); document.write( "c /sp = .6 = 60 %
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\n" ); document.write( "check, c/sp + p/sp =1, or c + p =sp ,,,,,ok
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