document.write( "Question 964262: Mr. Lin buys an article and sells it to Mr. Chen at a gain of 25 % on cost. Mr. Chen sells the article to Mr. Ang at a gain of 20 % on cost. How much money did Mr. Lin pay for the article, if Mr. Ang pays $ 360 for it? \n" ); document.write( "

Algebra.Com's Answer #589154 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+c+\"$ = Mr Chen's cost
\n" ); document.write( "(1) $\"+c+%2B+.2c+=+360+\"$
\n" ); document.write( "(1) $\"+1.2c+=+360+\"$
\n" ); document.write( "(1) $\"+c+=+300+\"$
\n" ); document.write( "------------------------
\n" ); document.write( "Let $\"+b+\"$ = Mr Lin's cost
\n" ); document.write( "(2) $\"+b+%2B+.25b+=+300+\"$
\n" ); document.write( "(2) $\"+1.25b+=+300+\"$
\n" ); document.write( "(2) $\"+b+=+240+\"$
\n" ); document.write( "Mr Lin paid $240 for th article\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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