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
a red ball.
Total number of balls=3+5+2
Total number of events =p(n)=10
There are 2 red balls
favourable number of events=p(A)=2
Hence,p(getting a red ball) = `"P(A)"/"P(n)"=2/10=1/5`