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14 March, 16:50

A bag contains tiles with the letters C-O-M-B-I-N-A-T-I-O-N-S. Lee chooses a tile without looking and doesn't replace it. He chooses a second tile without looking. What is the probability that he will choose the letter O both times?

A 1/132

B 1/72

C 1/66

D 1/23

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Answers (1)
  1. 14 March, 17:07
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    To find the probability you will multiply the probability of each possibility.

    2/12 (1st attempt) x 1/11 (2nd attempt)

    The answer is 1/66 chance (Choice C).
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