SOLUTION: Delia has a bag filled with 4 emeralds, 7 rubies, and 5 sapphires. What is the probability of her selecting 2 sapphires in a row, if she does not put back the first jewel she takes

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Question 1173796: Delia has a bag filled with 4 emeralds, 7 rubies, and 5 sapphires. What is the probability of her selecting 2 sapphires in a row, if she does not put back the first jewel she takes out?
Answer by ikleyn(52887) About Me  (Show Source):
You can put this solution on YOUR website!
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The number of jewels, originally, is  4 + 7 + 5 = 16.


The probability is  P = %285%2F16%29%2A%284%2F15%29 = %285%2F4%29%2A%281%2F15%29 = 1%2F%284%2A3%29 = 1%2F12.    ANSWER

Solved.

The formulas are SELF-EXPLANATORY.