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Question

A fair die is tossed three times. Given that the sum of the first two tosses equals the third. The probability that at least one ‘2’ has turned up, is equal to

  1. fraction numerator 1 over denominator 6 end fraction    
  2. fraction numerator 91 over denominator 216 end fraction    
  3. fraction numerator 1 over denominator 2 end fraction    
  4. fraction numerator 8 over denominator 15 end fraction    

The correct answer is: fraction numerator 8 over denominator 15 end fraction


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