Art of Problem Solving

2009 AMC 8 Problems/Problem 22: Difference between revisions

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==Problem==
==Problem==


How many whole numbers between 1 and 1000 do [b]not[/b] contain the digit 1?
How many whole numbers between 1 and 1000 do '''not''' contain the digit 1?


<math> \textbf{(A)}\ 512 \qquad \textbf{(B)}\ 648 \qquad \textbf{(C)}\ 720 \qquad \textbf{(D)}\ 728 \qquad \textbf{(E)}\ 800</math>
<math> \textbf{(A)}\ 512 \qquad \textbf{(B)}\ 648 \qquad \textbf{(C)}\ 720 \qquad \textbf{(D)}\ 728 \qquad \textbf{(E)}\ 800</math>

Revision as of 12:29, 14 August 2011

Problem

How many whole numbers between 1 and 1000 do not contain the digit 1?

$\textbf{(A)}\ 512 \qquad \textbf{(B)}\ 648 \qquad \textbf{(C)}\ 720 \qquad \textbf{(D)}\ 728 \qquad \textbf{(E)}\ 800$