document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1032804>Question 1032804</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The traffic light at three different road crossing changes after every 48 seconds, 72 seconds, and 108 seconds. If they start changing simultaneously at 8 am, after how much time they will change again simultaneously? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #647391 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=647391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We are asked to find a common multiple of 48, 72, and 108...<BR>\n" );
document.write( "One way is to merely list the multiples of each and see the first number common in all three lists...like this...<BR>\n" );
document.write( "48,96,144,192,240, etc.<BR>\n" );
document.write( "72,144,216,288,360, etc.<BR>\n" );
document.write( "108,216,324,432,540, etc.<BR>\n" );
document.write( "The other way is to do a prime factorization and go from there... </SPAN>\n" );
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