Question

A bingo caller has machine that contains 65 balls. The balls are marked as follows : b1, b2, b3, _ _ _ _ , b13 p1, p2, p3, _ _ _ _ , p13 n1,n2,n3, _ _ _ _ , n13 g1,g2,g3, _ _ _ _ , g13 o1,o2,o3, _ _ _ _ , o13 the balls are mixed and one ball is drawn at random. Find (i) p (drawing a ball that has g on it) (ii) p (drawing a ball that has a number which is not a multiple of 5) (iii) p (drawing a ball that has a doublet

Answer 1

Step-by-step explanation:

(i) the probability of picking a ball which has g on it is 13/65 which is nothing but 1/5;

the probability of picking a ball which is not a multiple of 5 is 52/65 which is nothing but 4/5