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One card is drawn from a well-shuffled deck of 52 cards. What is the probability that the card is not an ace?
A$\frac{1}{13}$
B$\frac{4}{13}$
C$\frac{12}{13}$
D$\frac{48}{13}$
Answer & Solution
Correct answer: C. $\frac{12}{13}$
A deck has 4 aces, so non-aces are $52-4=48$. Hence the probability is $\frac{48}{52}=\frac{12}{13}$. Equivalently, it is $1-\frac{1}{13}=\frac{12}{13}$.
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