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प्रश्न
A card is picked at random from a pack of 52 playing cards. Given that the ptcked card is a queen, the probability of this card to be a card of spade is ______.
पर्याय
`1/3`
`4/13`
`1/4`
`1/2`
MCQ
रिकाम्या जागा भरा
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उत्तर
A card is picked at random from a pack of 52 playing cards. Given that the ptcked card is a queen, the probability of this card to be a card of spade is `underlinebb(1/4)`.
Explanation:
`P(A//B) = (P(A ∩ B))/(P(B))`
where, A: The card is spade
B: The picked card is queen
⇒ `P(A//B) = (1/52)/(4/52)`
= `1/4`
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