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3 December, 09:27

A box contains

5

plain pencils and

5

pens. A second box contains

5

color pencils and

7

crayons. One item from each box is chosen at random. What is the probability that a plain pencil from the first box and a color pencil from the second box are selected?

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Answers (1)
  1. 3 December, 11:58
    0
    5 plain pencils and 5 pens ... total of 10 in all

    probability of picking a plain pencil is 5/10 which reduces to 1/2

    5 colored pencils and 7 crayons ... total of 12 in all

    probability of picking a colored pencil is 5/12

    probability of picking both ... 1/2 * 5/12 = 5/24 <==
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