Question

a box contains 4 white,3black and 2 red balls.A ball is drawn from this box.find the probability that it is (i) a white ball (ii) a black or red ball). (explain must be required)​

Answer 1

Answer:

Total balls = 4 + 3 + 2 = 9

White balls = 4

So probability of white ball = 4 / 9

Now next case is if it is red ball or black ball

Favourable odds are = red + black ball = 2 + 3 = 5

So probability = 5 / 9