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MHT CET20192 May 2019Morning ShiftMathematicsProbabilityActual

A bag contain s 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colour is ________

Options

  1. A5 7
  2. B1 7
  3. C7 15
  4. D1 15

Correct answer

C. 7 15

Step-by-step solution

Given bag contains 6 white and 4 black balls. Hence, required probability = 6 C 2 + 4 C 2 10 c 2 = 15 + 6 45 = 7 15

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