2 Answers

Aruis · Answer 1 · 2021-12-31T19:31:46+0000

Answer:

B. 5/21 chance

Explanation:

The probability he gets the black marker first is 5/7. The probability he gets a blue marker after his black marker not replaced is 2/6 or 1/3. 1/3*5/7 is 5/21

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