1.

a bus covers a certain distance in 42 minutes if it runs at a speed of 50 km per hour. what must be the speed of the bus in order to reduce the time of the journey to 30 minutes

Answer»

Let the distance be D km

we KNOW that, Distance = Speed x Time

∴ D = 50 km x 42/60 HR = 35 km

Now, Time = 30 minutes = 30/60 hr = 1/2 hr

NEW speed of the bus = Distance / Time = 35 km / (1/2) hr = 70 km/hr



Discussion

No Comment Found

Related InterviewSolutions