document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=277427>Question 277427</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man is to play a game as follows. In three tosses of balanced coin, he will get a reward of RS. 20,000,RS.10,000 ,RS. 5,000 and no reward if he gets 3 tails, 2 tails, 1 tail and no tail respectively. whats is his expected return. If the entrance fee for contest is Rs. 7,000 will he play the game?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #201970 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=201970\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (t+h)^3=<BR>\n" );
document.write( "t^3=.5^3=1/8<BR>\n" );
document.write( "3t^2h=3*.5^2*.5=3/8<BR>\n" );
document.write( "3th^2=3/8<BR>\n" );
document.write( "h^3=1/8 <BR>\n" );
document.write( ".<BR>\n" );
document.write( "In 8 tries he spends 7000*8=56000<BR>\n" );
document.write( "and wins <BR>\n" );
document.write( "20000 all tails<BR>\n" );
document.write( "30000 2 tails<BR>\n" );
document.write( "15000 one tail<BR>\n" );
document.write( "------add<BR>\n" );
document.write( "65000<BR>\n" );
document.write( ".<BR>\n" );
document.write( "65000-56000=9000 is the expected return after 8 tries<BR>\n" );
document.write( ".<BR>\n" );
document.write( "9000/8=RS 1125 expected return per try.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );