Question

A room is 12.5m long and 8m width .a square carpet of side 8m is laid on its floor find the area of the floor which is not carpeted

Answer 1

Portion uncovered = 50 cm = 0.5 m
Length of the carpet = 18 m - (0.5 m + 0.5 m) = 17 m
Breadth = 12.5 m - (0.5 m + 0.5 m) = 11.5 m
Area of the carpet = 17*11.5
= 195.5 sq m
Area of the hall = 18*12.5
= 225 sq m
Now area of the uncovered portion = area of the hall - area of the carpet
= 225 - 195.5 
Area of the uncovered portion = 29.5 sq cm

Answer 2

I am not sure the answer is right..