A bag contains 3 white, 5 black and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn White ball.
Total number of balls=3+5+2
Total number of events =p(n)=10
There are 3 white balls
favourable number of events=p(A)=3
Hence, p(getting a red ball)=`"P(A)"/"P(n)"=3/10