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40 votes
40 votes
Brooke has a box of crayons. 5 are yellow, 2 are green, 6 are blue, and 7 are red If Brooke randomly selects a green crayon and doesn’t put it back, what is the probability that she will choose a red crayon next?

User Amit Levy
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2 Answers

22 votes
22 votes
Answer: 7/190

Explanation: The total amount of crayons is 20 (the 100% in probability). Since there are 2 green crayons, the proportion will be 2/20. The question is asking what is the probability if she will choose a red crayon next, so we have to set up a fraction multiplication for the red crayon as well. Since she doesn’t put the green crayon back, the total will be 19 crayons, and the final fraction multiplication will be 2/20 x 7/19, which is equal to 7/190.
User Deralbert
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3.0k points
21 votes
21 votes
Red because there are 7 of it
User Stefdelec
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