The answer is A. Because you divide first and then multiply and divide again.
Igor might've been unhappy because he cheated to get a good grade/score.
2 number are x and y
X=10,y=65
First calculate the hourly rate, which is the difference of cleaning 2 and 1 rooms:
175-125=50
then calculate the initial value by subtracting the hourly rate from the "1 room" cost:
125-50=75
The initial cost might be something like driving to the place (which is only necessary once), while the rate covers work time or cleaning utensils used.
