Indian Institute of Foreign Trade 2011 Solved Paper

Question : 57 of 120

Marks: +1, -0

A bag contains 8 red and 6 blue balls. If 5 balls are drawn at random, what is the probability that 3 of them are red and 2 are blue?

Solution:

5 balls are drawn at random, hence the probability that 3 of them are red and 2 are blue =

{8c3×6c2}/{14c5}=60/143

Hence, option D is the correct answer.

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