From a pack of 52 cards, two are drawn one by one without replace… - Vidyadip

Question

From a pack of 52 cards, two are drawn one by one without replacement. Find the probability that both of them are kings.

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Answer

A = first card is king
B = Second card is also king
Probability of getting two kings (Without replacement)
$=\text{P(A) }\text{P}\Big(\frac{\text{B}}{\text{A}}\Big)$
$=\frac{4}{52}\times\frac{3}{51}$ [Since, 4 kings out of 52 cards.]
$=\frac{1}{13}\times\frac{1}{17}$
$=\frac{1}{221}$
Required probability $=\frac{1}{221}$

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