Question

A bus covers $24\mathrm{km}$ in $\frac{2}{5}\mathrm{hours}$. How long will it take to cover $135\mathrm{km}$?

Answer 1

Given:
To cover $24\mathrm{km}$ the distance by bus it takes$\frac{2}{5}\mathrm{hours}$.
$\therefore$ Time is taken by bus to cover $1\mathrm{km}$ = $\frac{2}{24\times 5}\mathrm{hours}=\frac{1}{60}\mathrm{hours}$

To cover $135\mathrm{km}$ distance time required = $135\times \frac{1}{60}\mathrm{hours}$ = $\frac{9}{4}\mathrm{hours}$
So $\frac{9}{4}\mathrm{hours}$or $2\frac{1}{4}\mathrm{hours}$ requires to a bus to cover the distance of$135\mathrm{km}$.