How many three-digit numbers are divisible by 3?

There are 300 three-digit numbers divisible by 3.

The first three-digit number divisible by 3 is 102, and the last is 999. To find the total count, we can use the following formula:

(Last number divisible by 3 - First number divisible by 3) / 3 + 1

Plugging in the values:

(999 - 102) / 3 + 1 = 897 / 3 + 1 = 299 + 1 = 300

Therefore, there are 300 three-digit numbers divisible by 3.

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