Question

Buses to cover a distance of 72 km in 1.5 hours over the first 36 km it travels at a speed of 54 km per hour at what speed must it travel for the rest of the distance in order to complete the journey in the time

Answer 1

Answer: 43.2 km/h

Step-by-step explanation:

Target = 72 km in 1.5 hr

Already travelled = 36 km at 54 km/hr

so. 54 = 36/t           (∵ speed = distance/time)

⇒  t = 36/54 = 2/3 hr

Bus travelled 36 km in 2/3 hour

remaining distance = 72-36 = 36 km

remaining time = 1.5 - 2/3 = 3/2 - 2/3 = 5/6 hr

so, speed = distance/time = 36/(5/6) = 216/5 = 43.2 km/hr

Answer 2

Answer:

4302 this is your answer hope it works