Question

A person travel from Newyork to
Washington at the rate of 45 miles per hour
and comes backs to the Newyork at the rate of 55 miles per hour
dos miles her hour what is the average speed​

Answer 1

Here's your answer --

we know that,

average speed = sum of speeds / number of speed

speed from new York to Washington = 45 mph.

speed from Washington to new York = 55 mph.

so, average speed = 45 + 55 / 2

= 100 / 2

= 50.

so, average speed is 50 mph.

hope it helps !!!