From a pack of 52 cards, one card is drawn at random. What is the probability that the card drawn is a ten or a spade?

Answer: Option A

Hence, n (S) = 52
There are 13 spades (including one ten) and there are 3 more ten
Let E = event of getting a ten or a spade
Then, n (E) = (13 + 3) = 16
$$\therefore P(E)=\frac{n(E)}{n(S)}=\frac{16}{52}=\frac{4}{13}$$