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Customer account “numbers” for a certain company consists of 2 letters followed by 2 single-digit numbers. How many different account numbers are possible if repetition of letters and digits are allowed?

Respuesta :

mhanifa

Answer:

  • 67600

Step-by-step explanation:

Let the format be:

  • LLDD- where L stands for letter and D- digit

For each L we have 26 (English alphabet) and for each D we have 10 options.

Number of possible accounts:

  • 26*26*10*10 = 67600

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