Suppose account numbers for an internet service provider consist of alpha-numeric characters. The first character is a digit (0

Question

2 years ago

15

Suppose account numbers for an internet service provider consist of alpha-numeric characters. The first character is a digit (0

through 9). The next 2 characters are capital letters (A through Z) and the last four characters are digits. How many account numbers are possible if no digit appears more than once? Your Answer:

Mathematics

1 answer:

Amiraneli [1.4K] · Answer 1 · 2023-06-16T05:25:15+03:00

Amiraneli [1.4K]2 years ago

6 0

Answer:

20,442,240 account numbers are possible.

Step-by-step explanation:

The first character has 10 possible values.

The next 2 has 26 * 26 = 676 possible combinations.

The last 4 has 9*8*7*6 = 3024 possible combinations.

So the answer is 10 * 676 * 3024

= 20,442,240.