Question

A car travels the first 50 km of of it's journey at an average speed of 25 metre per second and next 120 km at an average speed of 80 kilometre per hour the car completes a last part of it's journey at an average speed of 90 km per hour in 35 minutes find the average speed of its entire journey giving your answer in kilometre per hour​

Answer 1

Answer:

the average of speed is the answer 5000809 please mark me at brainlist answer