Question

A bag contains 2 black 6 blue and 7 orange balls 3 balls are drawn at random from bag the probability that all of them are blue is

Answer 1

HEYA!
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Probability of an Event ( E) is given by ,



$= > \frac{number \: of \: favourable \: outcomes}{total \: number \: of \: outcomes}$
Here , Total Outcomes = 2 + 6 + 7 + 3= 18.

Favourable outcomes ( blue balls ) = 6

Therefore , P (E) =

$\frac{6}{18} = > \frac{1}{3}$
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Answer 2

total no. of balls= 18
no. of blue balls = 6
probability of blue balls= 6/18
= 1/3