Two cards are drawn one by one from a pack of cards The probability of getting the first card a king...........

Quantitative Aptitude (CDS) Probability

Two cards are drawn one by one from a pack of cards. The probability of getting the first card a king and second one queen is (before drawing the second card, the first card is not placed again in the pack) :

1/663

4/51

4/663

1/13

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Explanation:

Let E and F be the events of drawing first card a king and second one is queen respectively , then
n( E ) = 4/52 = 1/13
And n( F /E ) = 4/51
By conditional probability,
P( F/E) = P(E $\Omega$ F)/P(E)
4/51= P(E $\Omega$ F)/1/13
P(E $\Omega$ F) = 4/51×1/13
= 4/663