ISRO Computer Science (CSE) 2014 - Question 37

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The probability that two friends are born in the same month is ________?

  • A. 1/6
  • B. 1/12
  • C. 1/144
  • D. 1/24

Answer: B. 1/12

Explanation: P(Friend 1 born in any month) = 1.\nP(Friend 2 born in same month) = 1/12.\nTotal = $1 \times 1/12 = 1/12$.

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