Question

Bag A contains three red and four white Balls; bag B contains two red and three white Balls. If one ball is drawn from bag A and two Balls from bag B, find the probability that:

(i) One ball is red and two balls are white 

(ii) All the three balls are of the same colour.

Answer 1

Here, the possible selection is as follows: 

(i) 1 Red from bag A, 2 white from bag B 

1 White from bag A, 1 white from bag B 1 Red from B 

P (one ball is red and two balls are white)

(ii) Possible selection is as follows:

(a) 1 Red from Bag A, 2 Red from Bag B 

(b) 1 White from Bag A, 2 white from Bag B P (All the three balls are of the same colour)