document.write( "Question 524890: By selling a pen for rs.165, mukti gains 10%. If she had sold it for rs.157.50, what percentage would she have lost or gained? \n" ); document.write( "
Algebra.Com's Answer #347963 by mananth(16946)\"\" \"About 
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if 110 is the SP CP=100
\n" ); document.write( "165 was the SP\r
\n" ); document.write( "\n" ); document.write( "110 ------100
\n" ); document.write( "165-------x\r
\n" ); document.write( "\n" ); document.write( "x/100=165/110
\n" ); document.write( "x=(100*165)/110\r
\n" ); document.write( "\n" ); document.write( "CP= 150\r
\n" ); document.write( "\n" ); document.write( "sold for 157.50\r
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\n" ); document.write( "\n" ); document.write( "150--------------7.50
\n" ); document.write( "100--------------x\r
\n" ); document.write( "\n" ); document.write( "x/7.50 = 100/150\r
\n" ); document.write( "\n" ); document.write( "x=7.50*100/150\r
\n" ); document.write( "\n" ); document.write( "She makes a profit of 5%\r
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