(iii) Number of black cards left = 23 cards (13 club + 10 spade)

Event of drawing a black card = E = 23

So, n(E) = 23

Hence, probability of drawing a black card = n(E)/ n(S) = 23/49

(iii) Number of black cards left = 23 cards (13 club + 10 spade)

Event of drawing a black card = E = 23

So, n(E) = 23

Hence, probability of drawing a black card = n(E)/ n(S) = 23/49