document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113239>Question 1113239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 12.	A jig-saw puzzle has 20 different pieces and each piece is given away <BR>\n" );
document.write( "        randomly with purchase of standard meal at a food outlet. A customer <BR>\n" );
document.write( "        needs just one more piece to complete his puzzle. He buys five <BR>\n" );
document.write( "        standard meals and looks at all the pieces. Find the probability that<BR>\n" );
document.write( "a)He did not get the piece to complete the jigsaw puzzle.<BR>\n" );
document.write( "b)He has the required piece exactly once.<BR>\n" );
document.write( "c)He gets the piece he requires with the last piece he looks at.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #728266 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=728266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> probability he doesn't get it is 19/20 or 0.95.  That has to happen 5 times in a row or .95^5=0.7738<BR>\n" );
document.write( "He gets it exactly once is .95^4*.05*5=0.2036<BR>\n" );
document.write( "This is 0.95^4*0.05=0.0407 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );