Given: A bag contains 10 red and 8 white balls
Required to find: Probability that one ball is drawn at random and getting a white ball
Total number of balls 10 + 8 = 18
Total number of white balls is 8
We know that, Probability = Number of favourable outcomes/ Total number of outcomes
Thus, the probability of drawing a white ball from the urn is 8/18 = 4/9