90
* * * * *
That is clearly incorrect since there are more between 700 and 799.
The correct answer is 252.
There are no three didgit numbers but there are 63 three digit numbers.
There are 900 three-digit numbers.
300300300300
45
There are 282 such numbers.
There are only 999 three digit whole numbers.
A lot
There are no three didgit numbers but there are 63 three digit numbers.
There are 90 palindromic numbers.
171
There are 900 three-digit numbers.
300300300300
45
There are 282 such numbers.
16000
There are 17 such numbers.
300