A car travelling at a speed of 40 km/hour can complete a journey in 9 hours. How long will it take to travel the same distance at 60 km/hour?
A car travelling at a speed of 40 km/hour can complete a journey in 9 hours. How long will it take to travel the same distance at 60 km/hour?
[A]4 hours
[B]4.5 hours
[C]3 hours
[D]6 hours
6 hours
Total distance covered = speed $latex \times$ Time
=40$latex \times$9 = 360km/hr
The required time at 60 kmph = 360$latex \div$60=6 hours.
Hence option [D] is the right answer.