How many 3-digit hexadecimals start with a letter (A-F) or end with a numeral (0-9) (or both) ? Explain.

Question

Leon

Mathematics

6 October, 10:08

How many 3-digit hexadecimals start with a letter (A-F) or end with a numeral (0-9) (or both) ? Explain.

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Answers (1)

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Toots · Answer 1

Answer: 960

Step-by-step explanation:

The first digit can be filled by letter A to F = 6 ways

The second digit will be filled by letter A to F or numeral 0-9 = 6+10 = 16 ways

The third digit will be filled by number 0 to 9 = 10 ways

So total 3 digit hexadecimals are = 6 x 16 x 10 = 960