Answer:
255,024,000 possible call letters.
Step-by-step explanation:
call letters to a radio station is 7 letters long
the first letter must be a W or a K . No letters are repeated.
First letter have only two possibility.
Total of 26 letters in alphabet. First letter must be W or K. So remaining 25 letters.
Remaining 6 letters can be any alphabet (25 letters)
No letters are repeated. So second letters have 25 possibility
Third letter have 24 possibility and so one
[tex]2 \cdot 25 \cdot 24 \cdot 23 \cdot 22 \cdot 21 \cdot 20=255024000[/tex]
So, 255,024,000 possible call letters.
