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Please help me, I need help I don’t know what to do. Last question.

Please help me, I need help I don’t know what to do. Last question.-example-1

2 Answers

7 votes
The complete answer is 5/21
User Andrei Cusnir
by
3.5k points
7 votes

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

User Aruis
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3.6k points