11
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Palindromic Numbers
A palindromic number is an integer that reads the same forwards and backwards. Examples are 737 and 5665.
Challenger
We consider all palindromic numbers with 2026 digits. What percentage of these numbers is divisible by 11? Round your answer to a whole percentage between 0 and 100.
Mastermind
We consider all palindromic numbers with 2025 digits. What percentage of these numbers is divisible by 11? Round your answer to a whole number between 0 and 100.