Question

The train is moving at a uniform speed of 80 km/h. How far will it go in 15 minutes?

Answer 1

Let the distance travelled in 15 minutes be $x$.

1 h = 60 min
In 60 min distance travelled is 80 km.

Using direct proportion we get,

$\frac{60}{80}=\frac{15}{x}x=20\text{km}$

$\therefore$ The train will travel 20 km in 15 minutes.