Question

A bowl contains 9 blue balls, 7 white, and 5 black

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

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 blue ball, so we can include that in 9C1 ways 9 ways. The remaining ball may be any color ball but not white, so we select other balls in 12C1 ways 12ways. Probability 912210 1835.

balls. If 2 balls are drawn in one go, then the probability of exactly one ball being blue is:

A 7/15

B 6/35

C 18/35

D 5/33

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SSC CGL

Management Aptitude Test (MAT)

A bowl contains 9 blue balls, 7 white, and 5 black

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