jee-advanced 1998 Q10

jee-advanced · India Probability Definitions Conditional Probability and Bayes' Theorem

10. If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, one ball is drawn at random, then the probability that 2 while and 1 black ball will be drawn is:
(A) $13 / 32$
(B) $1 / 4$
(C) $1 / 32$
(D) $3 / 16$

10. If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, one ball is drawn at random, then the probability that 2 while and 1 black ball will be drawn is:\\
(A) $13 / 32$\\
(B) $1 / 4$\\
(C) $1 / 32$\\
(D) $3 / 16$\\

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