1. $\left(20 \frac{94}{95} \times 1.65-20 \frac{94}{95}+\frac{7}{20} \times 20 \frac{94}{95}\right) \times 47.5 \times 0.8 \times 2.5$.
【Solution】Solve: $\left(20 \frac{94}{95} \times 1.65-20 \frac{94}{95}+\frac{7}{20} \times 20 \frac{94}{95}\right) \times 47.5 \times 0.8 \times 2.5$
$$
\begin{array}{l}
=20 \frac{94}{95} \times\left(1.65-1+\frac{7}{20}\right) \times 47.5 \times(0.8 \times 2.5) \\
=20 \frac{94}{95} \times 1 \times 47.5 \times 2 \\
=\frac{1994}{95} \times 1 \times 47.5 \times 2 \\
=1994 .
\end{array}
$$