document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1106037>Question 1106037</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average age of consisting doctors and lawyers is 40 . If the doctors average age is 35 and the lawyers average age is 50 , find the ratio of the number of doctors to the number of lawyers<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #720963 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=720963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "This is essentially a mixture problem; you are mixing doctors and lawyers and getting an average age of the whole group.<br><BR>\n" );
document.write( "Here is an easy way to solve mixture problems....<br><BR>\n" );
document.write( "(1) The overall average age of 40 is \"twice as close\" to the average age of the doctors (35) as it is to the average age of the lawyers (50):<BR>\n" );
document.write( "That is, 50-40=10; 40-35=5.  5 is half of 10; so 40 is twice as close to 35 as it is to 50.<BR>\n" );
document.write( "(2) That \"twice as close\" means the number of doctors has to be twice the number of lawyers.<br><BR>\n" );
document.write( "So the ratio of the number of doctors to the number of lawyers is 2:1. </SPAN>\n" );
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