document.write( "Question 1035503: There are 40 pieces of building blocks in a bag: 10 each of blue, green, red, and yellow. Two pieces are chosen at random. Identify the probability that both of the pieces chosen are green.
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Algebra.Com's Answer #650157 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! let P be probability \n" ); document.write( ": \n" ); document.write( "P (first block is green) = 10 / 40 = 1/4 \n" ); document.write( ": \n" ); document.write( "P (second block is green) = 9 / 39 \n" ); document.write( ": \n" ); document.write( "**************************************************************** \n" ); document.write( "P (both blocks are green) = (1/4) * (9/39) = 0.0576923 approx 6% \n" ); document.write( "**************************************************************** \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |