document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=2038>Question 2038</A>: <I><SPAN STYLE=\"word-break: break-all;\">  a cube of 3 units is painted on all sides.If this cube is divided into cubes of 1 unit,how many cube <BR>\n" );
document.write( "have none of their faces painted?<BR>\n" );
document.write( "(a)...<BR>\n" );
document.write( "(b)2<BR>\n" );
document.write( "(c)1<BR>\n" );
document.write( "(d)0<BR>\n" );
document.write( "(e)none of these </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #834 by </B><A HREF=/tutors/aboutme.mpl?userid=khwang><B>khwang(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=khwang><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=834\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  There are 3^3 = 27 small cubes if unit 1(^3).\r<BR>\n" );
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document.write( " There 3 levels: top,middle and the bottom level..\r<BR>\n" );
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document.write( " We see that the center cube of the middle level (9 cubes)is not painted.\r<BR>\n" );
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document.write( " So, the answer is (c)1.\r<BR>\n" );
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document.write( " Try to figure out the diagram of the 27 cubes.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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