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    • Question

      Two letters are selected randomly without replacement

      from the word ‘PROBABILITY’. Find the probability that both selected letters are consonants.
      A 1/2 Correct Answer Incorrect Answer
      B 7/11 Correct Answer Incorrect Answer
      C 21/55 Correct Answer Incorrect Answer
      D 6/11 Correct Answer Incorrect Answer

      Solution

      Total letters = 11
      Consonants = 7
      Required probability = ( 7 C 2 ) / ( 11 C 2 ) = 21 / 55

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