Difference between revisions of "1999 AHSME Problems/Problem 6"

Revision as of 18:52, 2 June 2011

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

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

Revision as of 14:04, 6 February 2010 (view source) Straw1boy (talk \| contribs) (Created page with '8')		Revision as of 18:52, 2 June 2011 (view source) PhiReKaLk6781 (talk \| contribs) (Added problem) Newer edit →
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−	8	+	What is the sum of the digits of the decimal form of the product <math> 2^{1999}\cdot 5^{2001}</math>?
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		+	<math> \textbf{(A)}\ 2\qquad \textbf{(B)}\ 4 \qquad \textbf{(C)}\ 5 \qquad \textbf{(D)}\ 7\qquad \textbf{(E)}\ 10</math>