Mathematics, 15.10.2020 02:01 sarahhN7534
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Wan has 22 bulbs of the same shape and size in a box. The colors and amounts of the bulbs are shown below:
6 blue bulbs
9 red bulbs
7 orange bulbs
Without looking in the box, Wan takes out a bulb at random. He then replaces the bulb and takes out another bulb from the box. What is the probability that Wan takes out an orange bulb in both draws?
7 over 22 multiplied by 7 over 22 equal 49 over 484
7 over 22 multiplied by 6 over 21 equal 42 over 462
7 over 22 plus 6 over 21 equal 279 over 462
7 over 22 plus 7 over 22 equal 308 over 484
Answers: 1
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