A box B 1 contains 1 white ball, 3 red balls and 2 black balls. Another box B 2 contains 2 white balls, 3 red balls and 4 black balls. A third box B 3 contains 3 white balls, 4 red balls and 5 black balls.
(i) If 1 ball is drawn from each of the boxes B 1 , B 2 and B 3 , the probability that all 3 drawn balls are of the same colour is
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(i)
⇒ P(W W W) + P(R R R) + P(B B B)
+ 
+ 
⇒ 
⇒ 
(ii)
P (Ball drawn from box 2 / one is W one is R) = 
= 
= 
= 
= 
= 
= 
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