Question

A bottle filling machine can fill 238 bottles in 2hrs. In 7hrs, it can fill ___ bottles.

Answer 1

$\begin{array}{ccc}\text{Number of bottles}& 238& y\\ \text{Time (In hours)}& 2& 7\end{array}$
$\frac{2}{238}=\frac{7}{y}\Rightarrow y=\frac{7\times 238}{2}=833bottles$