AMC 12 2012b Problem 12
- Paper
How many sequences of zeros and ones of length 20 have all the zeros consecutive, or all the ones consecutive, or both?
\textbf{(A)}\ 190 \textbf{(B)}\ 192 \textbf{(C)}\ 211 \textbf{(D)}\ 380 \textbf{(E)}\ 382
Dataset text AMC 12 2000 to 2025. Quoted with source.
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D or E (both were accepted)
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