Question

A bag contains 3 red, 4 green and 5 white candles, one candle is drawn at random from the bag, find the probability that candle is not red.

Answer 1

Total number of possible outcomes = 3 + 4 + 5 = 12

No. favourable outcomes = 3

P(candle is red) = 3/12 = 1/4

P(candle is not red) = 1 - P (candle is red)

= 1 - (1/4) = (4 - 1)/4 = 3/4