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Q. If a card is drawn from a well shuffled pack of 52 cards, then the probability that it is a spade or queen is

Probability - Part 2

Solution:

$P\left(S\cup Q\right) = \frac{13}{52}+ \frac{4}{52}- \frac{1}{52}= \frac{16}{52} = \frac{4}{13}$