2000 AMC 8 Problems/Problem 11
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The number 
has the property that it is divisible by it's unit digit. How many whole numbers between 10 and 50 have this property?
\textbf{(A)}\ 15 \qquad \textbf{(B)}\ 16 \qquad \textbf{(C)}\ 17 \qquad \textbf{(D)}\ 18 \qquad \textbf{(E)}\ 20$
