How many gallons of gasoline will it take to mow one lawn if you maintain the rate of 1/2 gallon of gasoline per 1/4 lawn mowed? plz

Let the total amount of gasoline required to mow the lawn = X gallon
It is given that to mow 1/4th of the lawn, gasoline required = 1/2 gallon
So we can deduce the equation as
X/4 = 1/2
X = ( 1/2) * 4
   = 2
So the total amount of Gasoline required to mow the full lawn is 2 gallons.