Brain Teasers & Mental Math
Two cards are drawn without replacement from a standard 52-card deck. What is the probability both are aces?
Model answer
1/221 ≈ 0.45%.
P(first ace) = 4/52 = 1/13. Given one ace gone, P(second ace) = 3/51 = 1/17. Multiply: (4/52)(3/51) = 12/2652 = 1/221.
'Without…
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