document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=691029>Question 691029</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A box contains 3 red, 5 black and 2 white balls. One ball is drawn randomly from the box. After putting the ball back into the box, one ball is again drawn randomly. \r<BR>\n" );
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document.write( "Find the probability that the 2 balls drawn are of different colours </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #426489 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=426489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A box contains 3 red, 5 black and 2 white balls. One ball is drawn randomly from the box. After putting the ball back into the box, one ball is again drawn randomly. <BR>\n" );
document.write( "Find the probability that the 2 balls drawn are of different colours<BR>\n" );
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document.write( "# of ways to succeed: 10C2 - [3C2+5C2+2C2] = 45-[3+10+1] = 31<BR>\n" );
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document.write( "# of possible pairs: 10C2 = 45<BR>\n" );
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document.write( "P(2 of different colors) = 31/45 <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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