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Bag ?A? contains 5 white and 2 black balls. Bag ?B? contains
2 white and 3 black balls. If any one bag is chosen and a
ball is taken out of it at random, what is the probability
that the ball is black?

(a) 31/70

(b) 1/2

(c) 5/12

(d) 3/5

Question Posted / hanumesh

Answer Posted / hanumesh

b

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