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12 October, 01:30

Ten slips of paper labeled from 1 to 10 are placed in a hat. The first slip of paper is not replaced before selecting the second slip of paper.

What is the probability of selecting an odd number followed by an even number?

A. 1/4

B. 1/5

C. 5/18

D. 2/9

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Answers (2)
  1. 12 October, 01:45
    0
    5/10 * 5/9

    1/2 * 5/9

    5/18
  2. 12 October, 01:49
    0
    Note: Since the question states that the first number is not replaced, the second number is "dependent" on the first.

    Problem Solved:

    Probability (odd, then even) = (5/10) x (5/9)

    (5/10) x (5/9)

    = 25/90

    = 5/18 (simplified)

    Answer: C. 5/18
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