document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157462>Question 1157462</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many numbers of four different digits can be formed from the digits 1,2,3,4,5,6,7,8, and 9 if each number must consist of two odd and two even digits? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #780317 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13203)</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=780317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Choose 2 of the 5 odd digits: C(5,2) = 10 ways<br><BR>\n" );
document.write( "Choose 2 of the 4 even digits: C(4,2) = 6 ways<br><BR>\n" );
document.write( "Arrange the 4 chosen digits to form a 4-digit number: 4!=24 ways<br><BR>\n" );
document.write( "ANSWER: 10*6*24 = 1440<br><BR>\n" );
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