SOLUTION: How many different radio-station call signs are possible in which the first letter is a K or a W and exactly four different letters are used?
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Question 969996: How many different radio-station call signs are possible in which the first letter is a K or a W and exactly four different letters are used?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How many different radio-station call signs are possible in which the first letter is a K or a W and exactly four different letters are used?
2*26*26*26
= 35152
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If you mean no letters repeated:
= 2*25*24*23
= 27600
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