Given data :
[tex]1\text{ hour = }\frac{1}{56}miles[/tex]distance required to cover =
[tex]\frac{7}{8}[/tex]thus, the time taken is,
[tex]\begin{gathered} =\frac{\frac{7}{8}}{\frac{1}{56}} \\ =\frac{7}{8}\times56 \\ =\frac{7}{1}\times7 \\ =7\times7 \\ =49 \end{gathered}[/tex]thus the time taken is 49 hours.
