A bag contains 2 red, 3 green and 4 blue balls. One ball is drawn at random. Find the probability of drawing a green ball.

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15

35

45

13

answer is D.

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Detailed Solution

Given a bag with red(R), green(G), and blue(B) balls.
Total balls = 2+3+4 = 9.
There are a total of nine balls in the bag.
Sample space

= R 1, R 2, G 1, G 2, G 3, B 1, B 2, B 3, B 4

The probability the ball drawn from the bag is a green

= Favourable events Total Number of outcomes

= 39

= 13

The probability of drawing a green ball is

\frac{1}{3} .

Hence, option 4 is correct.

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