document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=87268>Question 87268</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mike invested $6000 for one year. He invested part of it at 9% and the rest at 11%. At the end of the year he earned $624 in interest. How much did he invest at each rate? </SPAN>\n" );
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document.write( "    let the amount invested at 9% be = x interest =9x/100<BR>\n" );
document.write( "        amount invested at 11%=(6000-x)  interest =(6000-x).11/100<BR>\n" );
document.write( "       total interest = 624 hence 9x/100+(6000-x).11/100=624<BR>\n" );
document.write( "              9x/100-11x/100+660=624   -2x/100=624-660 <BR>\n" );
document.write( "                                      -2x/100=-36    or x=1800  6000-1800=4200<BR>\n" );
document.write( "          amount invested at 9% interest=Rs1800<BR>\n" );
document.write( "          amount invested at 11%interest=Rs 4200 </SPAN>\n" );
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