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
Solution:
(a) 25 km
Let x km be the required distance.
Now, 1 h = 60 min
| Distance (in km) | 75 | |
| Time (in min) | 60 | 20 |
Less distance will be covered in less time
Now, $\frac{75}{60}=\frac{x}{20}$
$\Rightarrow x=\frac{75 \times 20}{60}$
$\Rightarrow x=25 \mathrm{~km}$