document.write( "Question 477879: Two urns each contain green balls and blue balls. Urn I contains five green balls and two blue balls and Urn II contains two green balls and five blue balls. A ball is drawn from each urn. What is the probability that both balls are blue?
\n" ); document.write( "I don't understand how to work this.
\n" ); document.write( "

Algebra.Com's Answer #327450 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Two urns each contain green balls and blue balls. Urn I contains five green balls and two blue balls and Urn II contains two green balls and five blue balls. A ball is drawn from each urn. What is the probability that both balls are blue?
\n" ); document.write( "------------------
\n" ); document.write( "(2/7)(5/7) = 10/49
\n" ); document.write( "------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===========
\n" ); document.write( "
\n" );