MCQ
If $4\,P(A) = 6\,P\,(B) = 10\,P\,(A \cap B) = 1,$ then $P\,\left( {\frac{B}{A}} \right) = $
  • $\frac{2}{5}$
  • B
    $\frac{3}{5}$
  • C
    $\frac{7}{{10}}$
  • D
    $\frac{{19}}{{60}}$

Answer

Correct option: A.
$\frac{2}{5}$
a
(a) $P{\rm{ }}\left( {\frac{B}{A}} \right) = \frac{{P(A \cap B)}}{{P(A)}} = \frac{{(1/10)}}{{(1/4)}} = \frac{2}{5}.$

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