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JEE Advanced 2013 Paper 2

Paragraph for Questions 55 and 56
A box B‌1 contains 1 white ball, 3 red balls and 2 black balls. Another box B‌2 contains 2 white balls, 3 red balls and 4 black balls. A third box B‌3 contains 3 white balls, 4 red balls and 5 black balls.

Question : 55

Total: 60

If 1 ball is drawn from each of the boxes B‌1, B‌2 and B‌3, the probability that all 3 drawn balls are of the same colour is

[JEE Adv 2013 P2]

82
648
90
648
558
648
566
648

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