Question

A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is black or white.

Answer 1

Total no. of possible outcomes = 15 {5 black, 7 red and 3 white balls}

E ⟶ event of drawing black or white

No. of favourable outcomes = 8 {5 black and 3 white}

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

P(E) = `8/15`