What is the maximum number of hours that the completion time of a critical activity can be reduced without changing the critical
1 answer:
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Answer:
D.
Step-by-step explanation:
We have been given that a bag contains x blue chips and y red chips. The probability of selecting a red chip at random is 3/7. We are asked to find the .
Since we are told that probability of selecting a red chip at random is 3/7, so red balls are 3 and total balls are 7:
Since total balls are 7, so we will get:
Upon substituting in expression
, we will get:
Therefore, the value of is
and option D is the correct choice.