What is the probability of getting a queen or spade from a set of cards ?
2026
What is the probability of getting a queen or spade from a set of cards ?
- A.
4/13
- B.
1/4
- C.
17/52
- D.
1/52
Attempted by 557 students.
Show answer & explanation
Correct answer: A
Key idea: use the union formula P(spade or queen) = P(spade) + P(queen) - P(spade and queen).
Total cards = 52.
Number of spades = 13, so P(spade) = 13/52.
Number of queens = 4, so P(queen) = 4/52.
Queen of spades is counted in both groups, so P(both) = 1/52.
Apply the formula: (13/52) + (4/52) - (1/52) = 16/52 = 4/13. Final answer: 4/13.