document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1027249>Question 1027249</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A house has seven rooms.  They need painted.  The painter can chose either white or green.  How many possible outcomes are there?          Thank you!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #642483 by </B><A HREF=/tutors/aboutme.mpl?userid=mathmate><B>mathmate(429)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathmate><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=mathmate><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=642483\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  <BR>\n" );
document.write( "Question:<BR>\n" );
document.write( "A house has seven rooms.  They need painted.  The painter can chose either white or green.  How many possible outcomes are there?          Thank you!!<BR>\n" );
document.write( " <BR>\n" );
document.write( "Solution:<BR>\n" );
document.write( "Nice question!<BR>\n" );
document.write( "The word \"outcome\" means after work is all finished, not during the painting.<BR>\n" );
document.write( "We conclude therefore that order of painting rooms does not count.<BR>\n" );
document.write( "We can take this problem as a 7-step experiment, where the number of possible outcomes is (#outcome for each room)^7.<BR>\n" );
document.write( "For example, if each room could be painted in one of 3 colours, then there are<BR>\n" );
document.write( "3^7=2187 ways.<BR>\n" );
document.write( "You can work out similarly the number of ways for only two choices of colour in each room. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );