SOLUTION: A bag contains green and yellow color tiles. You pick two tiles at random with out replacing the first one. The probability that the first tile is yellow is 3 to 5. The probability

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Question 368708: A bag contains green and yellow color tiles. You pick two tiles at random with out replacing the first one. The probability that the first tile is yellow is 3 to 5. The probability of drawing two yellow tiles is 12 to 35. Find the probability that the second tile you pick is yellow.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A bag contains green and yellow color tiles. You pick two tiles at random with out replacing the first one.
The probability that the first tile is yellow is 3/5.
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The probability of drawing two yellow tiles is 12 to 35.
P(yellow and yellow) = P(y)*P(y|y)
12/35 = (3/5)*P(y|y)
P(y|y) = 12/21 = 4/7
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Find the probability that the second tile you pick is yellow.
P(y|y) = 4/7
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Cheers,
Stan H.
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