-900
You are basically talking about 3-digit numbers there. There are 90. This is because there are 9 options for the first digit, and 10 options for the second digit. The third digit is not analyzed separately, because it has to be equal to the first digit.
54
there are 90 palindromes in 100 to 1000 As; 10 palindromes in each 100 and upto 1000, there are 9 hundreds.Therefore; 9 into 10 is equal to 90
90
350
10 - 101,111,121, ...
40.
there are 90 palindromes in 100 to 1000 As; 10 palindromes in each 100 and upto 1000, there are 9 hundreds.Therefore; 9 into 10 is equal to 90
90
350
25 numbers are between 1-100.
10 - 101,111,121, ...
40.
40 palindromes.
18 if you include 1 and 17 if you do not.
There are ten such numbers.
There are 90 palindromic numbers between 100 and 1000
If you mean "between" 100 and 1000 to mean excluding 100 and 1000 then 449. If you want to include 100 and 1000 then 451.
6.