olymmath

AMC 12 2013a Problem 22

  • Paper

A palindrome is a nonnegative integer number that reads the same forwards and backwards when written in base 10 with no leading zeros. A 6-digit palindrome nn is chosen uniformly at random. What is the probability that n11\frac{n}{11} is also a palindrome?

\textbf{(A)} \ \frac{8}{25} \textbf{(B)} \ \frac{33}{100} \textbf{(C)} \ \frac{7}{20} \textbf{(D)} \ \frac{9}{25} \textbf{(E)} \ \frac{11}{30}

Dataset text AMC 12 2000 to 2025. Quoted with source.

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E

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