2010 Fermat Problem 13

Fifty numbers have an average of 76. Forty of these numbers have an average of 80. The average of the other ten numbers is

\textbf{(A)}\ 60\quad \textbf{(B)}\ 4\quad \textbf{(C)}\ 72\quad \textbf{(D)}\ 40\quad \textbf{(E)}\ 78

If there are no answer choices shown, enter a numerical answer.

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