141. Calculate $x=\frac{2.48 \cdot 0.3665}{5.643}$.
Solution. The number 2.48 has the least number of significant figures, which is 3; therefore, we round the other numbers to three significant figures (0.367 and 5.64). Consequently,

$$
x=\frac{2.48 \cdot 0.367}{5.64}=0.16137 \approx 0.161
$$