Question

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 White

Answer 1

Total number of possible outcomes = 12 {3 red balls, 5 black balls & 4 white balls}

E ⟶ event of getting white ball

No. of favourable outcomes = 4 {4 white balls}

Probability, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`

Probability, P(E) =4/12 =1/3