Question

A room is $12.5$ m long and $8$ m wide. A square carpet of side $8$ m is laid on its floor. Find the area of the floor which is not covered by carpet.

• A. $6$ m
• B. $36$ sq.m
• C. $63$ m
• D. $63$ sq.m

Answer 1

The correct option is B $36$ sq.m

Area of room $=\text{length}\times \text{breadth}$

$=1.5\times 8=100m^2$

Area of carpet $=s\times s=8\times 8=64m^2$

Therefore, the area of the floor which is not carpeted $=100-64=36$ sq. m.