SOLUTION: A box contains 5 red,3 green and 4 blue balls of the same size.if a boy picks two balls from the box one after the other without replacement,what is the probability that both balls

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Question 388902: A box contains 5 red,3 green and 4 blue balls of the same size.if a boy picks two balls from the box one after the other without replacement,what is the probability that both balls are red?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
For the first red ball,
P%28R%29=5%2F%285%2B3%2B4%29=5%2F12
For the second red ball,
P%28R%29=4%2F11
So then,
P%282R%29=%285%2F12%29%284%2F11%29=5%2F33