document.write( "Question 698357: amit sells a pen to kamala a gain of 10% and kamal sells it to vimal at a gain of 20%. if vimal pays 19.80 dollars for it what did it cost amit \n" ); document.write( "
Algebra.Com's Answer #430626 by Simnepi(216)\"\" \"About 
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vimal bought the pen for 120% of the price kamal paid
\n" ); document.write( "to find what kamal paid \"K+=++%281980%2F120%29+X+100\"
\n" ); document.write( "therefore K = $16.50
\n" ); document.write( "kamal bought the pen for 110% of the price amit paid
\n" ); document.write( "to find what amit paid \"A+=++%281650%2F110%29+X+100\"
\n" ); document.write( "therefore A = $15
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