How many different two-letter initials with none of the letters repeated can…
2023
How many different two-letter initials with none of the letters repeated can people have?
- A.
550
- B.
650
- C.
750
- D.
950
Attempted by 14 students.
Show answer & explanation
Correct answer: B
Answer: 650
Reason: Use counting for each position.
First letter: 26 choices (A to Z).
Second letter: 25 remaining choices (cannot repeat the first).
Total combinations: 26 × 25 = 650.