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A bag contains 5 white and 4 black balls...

A bag contains 5 white and 4 black balls. If 3 balls are drawn at random, find the probability that at least two of them are white.

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The correct Answer is:
`=P(A)+P(B)=(10)/(21)+(5)/(42)=(25)/(42)`
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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-HS (XI) AND WBJEE 2018 (GROUP - C)
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