Question

Tick (✓) the correct answer:
A car is travelling at a uniform speed of 75 km/hr. How much distance will it cover in 20 minutes?
(a) 25 km
(b) 15 km
(c) 30 km
(d) 20 km

Answer 1

(a) 25 km

Let x km be the required distance.
Now, 1 h = 60 min

Distance (in km)	75	$x$
Time (in min)	60	20

Less distance will be covered in less time.
$$\begin{gathered} \mathrm{Now},\frac{75}{60}=\frac{x}{20} \\ \Rightarrow x=\frac{75\times 20}{60} \\ \Rightarrow x=25\mathrm{km} \end{gathered}$$