A random variable $X$ has the following distribution <br> <br> the values of $k$ and $P(X < 3)$ are equal to :

Question

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( A ) $k = \frac{1}{10}, \; P(X <3) = \frac{3}{5}$ <br/> ( B ) $k = \frac{3}{10}, \; P(X <3) = \frac{1}{10}$ <br/> ( C ) $k = \frac{1}{10}, \; P(X <3) = \frac{3}{10}$ <br/> ( D ) $k = \frac{1}{24}, \; P(X <3) = \frac{5}{12}$</span>