MCQ
Two dice are thrown. The probability that the total score is a prime number, is
  • A
    $\frac{1}{6}$
  • $\frac{5}{12}$
  • C
    $\frac{1}{2}$
  • D
    None of these

Answer

Correct option: B.
$\frac{5}{12}$
(B)
Prime numbers are $\{2,3,5,7,11\}$.
Hence, required probability$=\frac{1+2+4+6+2}{36}=\frac{15}{36}=\frac{5}{12}$

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