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There are 10 boxes each containing 6 white and 7 red balls. Two random boxes are chosen, one ball is drawn simultaneously at random from each and transferred to the other box. Now a box is again chosen from the 10 boxes and a ball is chosen from it. Then the probability that this ball is white is (A) 6/13 (B) 7/13 (C) 5/13 (D) none of these

There are 10 boxes each containing 6 white and 7 red balls. Two random boxes are chosen, one ball is drawn simultaneously at random
from each and transferred to the other box. Now a box is again chosen
from the 10 boxes and a ball is chosen from it. Then the probability
that this ball is white is

(A) 6/13 (B) 7/13 (C) 5/13 (D) none of these
 

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
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