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1 April, 05:44

A box contains

5

plain pencils and

5

pens. A second box contains

7

color pencils and

3

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

+2
Answers (2)
  1. 1 April, 07:45
    0
    The pen has a 50% probability. The crayon has 4.28 probability.
  2. 1 April, 09:31
    0
    5:5 (first box, pencils to pens)

    7:3 (second box, coloured pencils to crayons)

    The probability of picking a pen (1st box) : 5/10

    The probability of picking a crayon (2nd box) : 3/10

    Probability of picking both: 5/10*3/10 = 15/100
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