Question

a car travels from stop a to stop b with the speed of 30km/h and then return back to a with the speed of 50 km/h. find the average speed of car​

Answer 1

Step-by-step explanation:

hiii.. friends...

distance = speed/ time

D=50/30

Answer 2

Answer:

40km/h

Step-by-step explanation:

average of 2 numbers =$\frac{a+b}{2}$

The speed at which car first covered distance x=30km/h

The speed at which car covered distance x while returning=50km/h

As we got 2 different speed, let initial speed(u) be 30 km/h & final speed(v) be 50 km/h and we know that$\frac{u+v}{2}$=Average speed

∴$\frac{30km+50km}{2} =\frac{80}{2} \\=40km/h$

Hope it helps and pls mark brainliest.