(iii) Let E be the event of getting a black card.

There will be 23 black cards remaining since 3 spades are removed.

Number of favourable outcomes = 23

P(E) = 23/49

Hence the probability of getting a black card is 23/49.

(iv) Let E be the event of getting a heart.

There will be 13 hearts.

Number of favourable outcomes = 13

P(E) = 13/49

Hence the probability of getting a heart is 13/49.