Question

Fill in the blanks:

$19\mathrm{m}=............\mathrm{km}$

Answer 1

$$\begin{gathered} \mathrm{Since},1\mathrm{km}=1000\mathrm{m} \\ \mathrm{Then},1\mathrm{m}=\frac{1}{1000} \\ So,19\mathrm{m}=19\times \frac{1}{1000}\mathrm{km}=\frac{19}{1000}\mathrm{km}=0.019\mathrm{km} \\ \mathrm{Hence},9\mathrm{m}=0.019\mathrm{km} \end{gathered}$$