A car can cover a distance of 18 km in 24 minutes. The speed of a bus is twice that of the car. In how many minutes can the bus cover a distance of 135 km?
Answer & explanation
Correct answer: option 2
A car can cover a distance of 18 km in 24 minutes.
We know ,
Speed = \(\frac{DIstance}{Time}\)
Speed of the car ,
= \(\frac{18 × 60 }{24}\) = 45 km/h
The speed of a bus = 2 × Speed of the car
The speed of a bus = 2 × 45 = 90 km/h
Time taken by bus ,
= \(\frac{135}{90}\)
= \(\frac{3}{2}\) hours = 90 minutes
So , The bus covers a distance of 135 km in 90 minutes.