Q. 75.0( 2 Votes )

# A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is :

(i) White?

(ii) red?

(iii) black?

(iv) not red?

Answer :

(i) White?

Total numbers of red balls = 3

Number of black balls = 5

Number of white balls = 4

Total number of balls = 3 + 5 + 4 = 12

Probability of getting a white ball is =

(ii) red?

Total numbers of red balls = 3

Number of black balls = 5

Number of white balls = 4

Total number of balls = 3 + 5 + 4 = 12

Probability of getting a red ball is =

(iii) black?

Total numbers of red balls = 3

Number of black balls = 5

Number of white balls = 4

Total number of balls = 3 + 5 + 4 = 12

Probability of getting a black ball is =

(iv) not red?

Total numbers of red balls = 3

Number of black balls = 5

Number of white balls = 4

Total number of Non red balls = 5 + 4 = 9

Probability of getting a non red ball is =

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