Question

A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is
(i) A card of spade of an ace.

Answer 1

i) No. of spades = 13
No. of aces = 4
1 ace of spade will be double counted if we add the above 2.
No. of spades of aces = 13+4-1=16
PC spade 01 aces =$\frac{16}{52}=\frac{8}{26}=\frac{4}{13}$