document.write( "Question 1150267: A box contains 4 red, 2 white and 3 green balls. Two balls are drawn out of the box in succession without replacement. What is the probability that both balls are the same color? \n" ); document.write( "

Algebra.Com's Answer #771672 by ikleyn(52777) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "There are 4 + 2 + 3 = 9 balls, in all.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The number of all pairs of balls is   = 9*4 = 36.  (The order of balls in pairs does not matter).\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The number of all pairs consisting of red balls is   = 6.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The number of all pairs consisting of white balls is 1.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The number of all pairs consisting of green balls is   = 3.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Thus the desired probability  is  P =  =  = .    ANSWER\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );