Her rate of speed is 2 miles per hour.
Explanation:
Given,
In
hours she walks
miles.
To find the rate of speed.
We need to find out the speed in 1 hour.
We will apply unitary method.
In
hours she walks
miles.
In 1 hour she walks
÷
miles.
=
×
miles
= 2 miles
Hence,
Her rate of speed is 2 miles per hour.