A card is picked at random from a pack of 52 playing cards. Given that the picked card is a queen, the probability of this card to be a card of spade is:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → $\frac{1}{4}$
No. of Queens in deck = 04 (1 from each group)
P(Spade|Queen)=$\frac{\text{Favourable outcomes}}{\text{Total. No. of outcomes}}$
$=\frac{1}{4}$