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Q.
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting :
(i) a non-face card, (ii) a black king
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Detailed Solution
(π) π πππ β ππππ ππππ
We need to find the probability of getting a non-face card from a deck of 52 cards. ππ’ππππ ππ πππ ππππ πππππ = πππ‘ππ ππ’ππππ ππ πππππ β ππ’ππππ ππ ππππ πππππ
πππ‘ππ ππ’ππππ ππ πππππ = 52 πππ‘ππ ππππ πππππ ππ ππππ = 12
ππ’ππππ ππ πππ β ππππ πππππ = 52 β 12
β ππ’ππππ ππ πππ β ππππ πππππ = 40
πππ‘ππ ππ’ππππ ππ πππ π ππππ ππ’π‘πππππ = 52
πβπ ππ’ππππ ππ πππ£ππ’πππππ ππ’π‘πππππ = ππ’ππππ ππ πππ β ππππ πππππ
πβπ ππ’ππππ ππ πππ£ππ’πππππ ππ’π‘πππππ = 40
Therefore, the probability of getting βnon face cardsβ is
Therefore, the probability of getting βnon-face cardsβ is .
(ππ) π πππππ ππππ
πππ‘ππ ππ’ππππ ππ πππ π ππππ ππ’π‘πππππ = 52
ππ’ππππ ππ πππππ πππππ = 2
β πβπ ππ’ππππ ππ πππ£ππ’πππππ ππ’π‘πππππ = 2
Therefore, the probability of getting βa black kingβ is
Therefore, the probability of getting βa black kingβ is .
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