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What is the probability of choosing of black ball

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There are two bags one of which contains 3 block and 4 white balls while other contains 4 black and 4 white balls A dies is cast if face 1 or 3 turns up a ball is taken from first bag and if any other face turns up, a ball is chosen from second bag.

What is the probability of choosing of black ball?

Reference no: EM13973413

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