Question

41. A box contains 6 red, 7 white and 5 black balls. A ball is drawn at random. find the probability that the ball is white. Also find the probability that ball is not red

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Answer 1

6 Red, 5 Black , 4 White

Total 15 balls out of which 4 balls to be drawn.

Total combinations= 15c4 = 1365 ways

There will be 3 possibilities.