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Management Aptitude Test Dec 2013 Paper

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Question : 88

Total: 200

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

11
21
10
21
12
21
9
21

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