document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1164813>Question 1164813</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A box contains tiles in the ratio of 4:5 black to <BR>\n" );
document.write( "grey.<BR>\n" );
document.write( "What is the probability a black tile is selected at <BR>\n" );
document.write( "random? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #789252 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=789252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the ratio of black to gray is 4/5.<BR>\n" );
document.write( "that means that, out of every 9 tiles, 4 are black and 5 are gray.<BR>\n" );
document.write( "the probability of selecting a black tile at random out of a set of 9 is therefore 4/9.\r<BR>\n" );
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