document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=578866>Question 578866</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many different 7 digit telephone numbers contain three 8s, two 6s, one 5 and one 4? \r<BR>\n" );
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document.write( "I did 7! x 3! x 2! x 1! x 1!=60480\r<BR>\n" );
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document.write( "Is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #370869 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=370869\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Not quite. In order to account for the fact that the three 8's are indistinguishable, you have to divide by 3!, not multiply. The number of ways is\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \frac{7!}{3!2!1!1!} = 420\"> </SPAN>\n" );
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