If $P=1000$ and $Q=0.01$, which of the following calculations gives the largest result?
(A) $P+Q$
(B) $P \times Q$
(C) $\frac{P}{Q}$
(D) $\frac{Q}{P}$
(E) $P-Q$
If $P=1000$ and $Q=0.01$, then

$$
P+Q=1000+0.01=1000.01
$$

$$
\begin{aligned}
& P \times Q=1000 \times 0.01=10 \\
& \frac{P}{Q}=\frac{1000}{0.01}=100000 \\
& \frac{Q}{P}=\frac{0.01}{1000}=0.00001 \\
& P-Q=1000-0.01=999.99
\end{aligned}
$$

so the largest is $\frac{P}{Q}$.

Answer: (C)