Question 3
Using the dd/mm/yyyy (day/month/year) format, dates such as 01/02/2010 and 02/02/2020 are called "Palindromic Days" because the eight-digit numbers formed (e.g. 01022010 and 02022020) are both palindromes. What is the remainder when the “Palindromic Day” in the year 2021 is divided by 11? (Note: A palindrome is a number which reads the same backward as forward.)