Question

Max wants to tile his living room. The length and width of the living room is 9 units and 7 units, respectively. Inside the living room, he has a square study space. It has a side length of 5 units. Instead of getting this space tiled, he wants to lay a carpet. How much area needs to be tiled?

Answer 1

Solution:
● The length of the living room = 9 units
● The width of the living room = 7 units
● Area of a rectangle = Length $\times$ Width
● Area of the living room = 9 units $\times$ 7 units
● Area of the living room = 63 sq units
● Length of each side of the square study = 5 units
● Area of square = Side $\times$ Side
● Area of the square study space = 5 units $\times$ 5 units
● Area of the study space = 25 sq units
● Total area of living room = Area of study space + Area to be tiled
● So, 63 = 25 + Area to be tiled
● Area to be tiled = 63 - 25
● Area to be tiled = 38 sq units

Hence, option D is correct.