Question

# A loaded truck travels $14$ km in $25$ minutes. If the speed remains the same, how far can it travel in $5$ hours?

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Solution

## Let the distance covered in $5$ hours be $x$ km.We know that $1$ minutes $=\frac{1}{60}$ hourTherefore, $25$ minutes $=25×\frac{1}{60}=\frac{5}{12}$ hourSpeed of loaded truck to cover $14$ km in $\frac{5}{12}$ hours is $\frac{dis\mathrm{tan}ce}{time}=\frac{14}{\frac{5}{12}}$ km/h $=\frac{14}{5}×12$ km/h $=\frac{168}{5}$ km/hNow, since the speed remains constant.So, the distance traveled by truck in $5$ hours at $\frac{168}{5}$ km/h is $speed×time=\frac{168}{5}×5$ km $=168$ kmHence, if the speed remains the same, the truck can travel $168$km in $5$ hours.

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