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1999 AHSME Problems/Problem 6

Revision as of 18:52, 2 June 2011 by PhiReKaLk6781 (talk | contribs) (Added problem)

What is the sum of the digits of the decimal form of the product $2^{1999}\cdot 5^{2001}$?

$\textbf{(A)}\ 2\qquad \textbf{(B)}\ 4 \qquad \textbf{(C)}\ 5 \qquad \textbf{(D)}\ 7\qquad \textbf{(E)}\ 10$

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