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IMAS 2020 - Middle Primary (Grades 3-4) - Round 2 Question 6

IMAS · IMAS 2020 - Middle Primary (Grades 3-4) - Round 2

Question 6

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.)