A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is (i) white (ii) black or red (iii) not white (iv) neither white nor black

Answer

(i) `(3)/(13)`
(ii) `(1)/(2)`
(iii) `(10)/(13)`
(iv) `(6)/(13)`