\problemdata                                                             
        {counting-22} % latex-friendly label for the prob.
        {Counting; Product rule} % The topic(s) of the problem content.  
        {Jaime Teevan} % Source (if known)                             
        {S02 cp7W; F01 Reading Problem} % Usage (list ones you are aware of). 
        {Tina Wang, S02} % Last revision info (author, date).   
                                                                         
                                                                         
\begin{problem}           
How many different possible ways could you answer next
week's reading problems if:
\begin{itemize}
\item the first problem had four true/false questions,
\item the second problem gave you one choice between four alternatives,
\item and you knew the answer to the third and last problem was an integer
 between 15 and 20 (15 and 20 included)?
\end{itemize}

\solution{384. There are 16 answers for the first part, 4 for the
 second and 6 for the third, a total of 16*4*6 = 384.}

\end{problem}
                                 