Cup of marbles
Ash has a cup containing ten marbles - four blue ones, three red ones, and the remainder are yellow. He shuts his eyes and picks out a marble.
| a) |
The probability that it is blue is:
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(A) \(1 \over 9\) (B) \(1 \over 4\) (C) \(4 \over 10\) (D) \(4 \over 6\)
(E) None of these. The answer is __________.
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| b) |
The probability that it is yellow is:
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(A) \(1 \over 9\) (B) \(3 \over 10\) (C) \(1 \over 3\) (D) \(3 \over 7\)
(E) None of these. The answer is __________.
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| c) |
The marble Ash picked out was blue. He put this blue marble on the table and then picked out another marble.
The probability that this marble is red is:
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(A) \(1 \over 9\) (B) \(3 \over 10\) (C) \(3 \over 9\) (D) \(3 \over 8\)
(E) None of these. The answer is __________.
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