• Numerical Ability - Permutation & Combination Or Probability
Question

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are blue, is:

  • A) 1/91
  • B) 2/91
  • C) 3/91
  • D) 4/91
  • E) None of these.
Solution

Ans.D

6c3/15c3 =4/91

Ans.D

6c3/15c3 =4/91
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