The answer is 300.
(9,19,29,39,49,59,69,79,89,90,91,92,93,94,95,96,97,98,99) = 20
20*10 (ten hundreds) = 200
Add another 100 for the nine hundred (from 900 to 999)
200+100 = 300
Chat with our AI personalities
There are 17 palindromes between 1 and 1000 that are divisible by 11
There are 31 perfect square numbers between 1 and 1000 (including 1).
There are 107 numerical palindromes between the numbers 1 and 1000, starting from 2 to 999.
168
500