document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194868>Question 1194868</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Box A contains 5 red balls and 4 white balls. Box B contains 6 red balls and 5 white balls. If one ball is selected at random without looking at the boxes and is found red, what is the probability it came from box A? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #827170 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13198)</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=827170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Note that the number of white balls, and the total number of balls, is irrelevant for the question that is asked; we only need to know the number of red balls in each box.<br><BR>\n" );
document.write( "There are 5 red balls in box A and 6 in box B, so when a red ball is selected, the probability that it came from box A is 5/(5+6) = 5/11.<br><BR>\n" );
document.write( "ANSWER: 5/11<br><BR>\n" );
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