A bag contains 3 red, 7 white and 4 black balls. If three balls are drawn from the bag, then the probability that all of them are of the same colour is

A bag contains 3 red, 7 white and 4 black balls. If three balls are dr

1.	A bag contains 3 red, 7 white and 4 black balls. If three balls are drawn from the bag, then the probability that all of them are of the same colour is
A.	\[\frac{6}{71}\]
B.	\[\frac{7}{81}\]
C.	\[\frac{10}{91}\]
D.	None of these
Answer» D. None of these

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A bag contains 3 red, 7 white and 4 black balls. If three balls are drawn from the bag, then the probability that all of them are of the same colour is

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