Answer-A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the p...

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In total, we have 97521 balls. We have drawn 2 balls we can draw them in 21C2 ways  21  19 2  210 ways. In those two balls, we need one to be a white ball, so we can include that in 7C1 ways  7 ways. The remaining ball may be any color ball but not white, so we select other balls in 14C1 ways 14 ways. Probability 714210 715.

A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the probability of exactly one ball being white is:

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