Customer account "numbers" for a certain company consist of 2 letters followed by 2 numbers. Step...

Question

Question

Customer account "numbers" for a certain company consist of 2 letters followed by 2 numbers.

Step 1 of 2 :

How many different account numbers are possible if repetitions of letters and digits are allowed?

math Statistics-And-Probability

Answer 1

Answer #1

Here, account number consist of 2 letters followed by 2 numbers. Also repetition of letters and digits allowed.

So,

The number of different possible account numbers = 26*26*10*10 = 67600

Answer 2

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