Question

A motorist travelled of his journey at 60 km/h and completed the remaining 90 km in 1 and half hours.
was his average speed for the whole journey?


answer correctly please

if you want to be marked as brainlest​

Answer 1

Answer:

.

Acccording to the question,

Half journey travelled at 60km/h

Remaining journey = 1 - 1/2 = 1/2 = 90 km

Hence, total journey is 180 km.

speed = distance/time

speed for the remaining journey = 90/1.5 = 60 km/hr

Hence, as the speed is same for the first half journey and the remaining journey average speed for the whole journey is 60 km/hr.

Answer 2

Answer:

AVG speed is 50/3m/s=60km/hr

Step-by-step explanation:

total distance travelled is 90km=90×1000m

total time taken is 3/2hr=90min=90×60sec

avg speed =total distance/total tym taken

=90×1000/90×60

=50/3m/s

=60km/hr