Question

Rohit takes 2 hours to reach the airport travelling at the speed of 40 km/h. How fast should he drive the car to reach the airport in 80 min? [2 MARKS]

Answer 1

Concept: 1 Mark
Application: 1 Mark

As the speed increases, the time taken decreases. So, the time and speed are inversely proportional.

$Speed\times time=constant$

$2\times 60\times 40=80\times s$

$s=60$

So, Rohit should drive the car at 60 km/h.