document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=254475>Question 254475</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A “4 x 4 x 4” cube is made from 32 white unit cubes and 32 black unit cubes.<BR>\n" );
document.write( "What is the largest possible percent of black surface area? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #186827 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=186827\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4*4*4=64<BR>\n" );
document.write( "If top layer and bottom layer were all black we would maximize black surface<BR>\n" );
document.write( "16 black on top and 16 on bottom=32 cubes<BR>\n" );
document.write( "now how many surfaces squares are black<BR>\n" );
document.write( "32<BR>\n" );
document.write( "plus 8 on each of 4 sides times 4=32 more<BR>\n" );
document.write( "64 are black<BR>\n" );
document.write( "White are 32 =8 on each of 4 sides but not top and bottom\r<BR>\n" );
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