The unit rate of road construction is 2 miles per day.
Step-by-step explanation:
Given,
In [tex]\frac{1}{8}[/tex] days [tex]\frac{1}{4}[/tex] miles road is constructed.
To find
The rate of road constructed per day
Method
We will apply unitary method to solve it.
Now,
In [tex]\frac{1}{8}[/tex] days [tex]\frac{1}{4}[/tex] miles road is constructed.
In 1 day the road will be constructed = [tex]\frac{1}{4}[/tex] ÷ [tex]\frac{1}{8}[/tex] miles
= 2 miles