One card is drawn at random from a standard deck of 52 cards. What is the probability that it is a heart or a king?
Answer and explanation
Correct answer: B. 4/13
- Step 1: There are 13 hearts and 4 kings, and the king of hearts is in both groups. Step 2. P = (13 + 4 - 1)/52 = 16/52 = 4/13. Answer: 4/13. Why not the others: 17/52 counts the king of hearts twice, 1/52 is the probability of the king of hearts alone, and 1/4 counts only the hearts.
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