Question

8. A floor is 5 m long and 4 m wide. A square carpet of side 3 m is laid on the floor. Find the area of the floor that is not carpeted.​

Answer 1

Answer:

area of floor = l×b

= 5×4 = 20m

area of square carpet = side × side

= 3×3 = 9m

area of floor not carpeted = 20-9 = 11 m

Answer 2

Answer:

Length of floor = 5 m and breadth of floor = 4 m

Area of floor = length x breadth

= 5 m x 4 m = 20 m.sq

Now, Side of square carpet = 3 m

Area of square carpet = side x side = 3 x 3 = 9 m.sq

Area of floor that is not carpeted = 20 m – 9 m = 11 m.sq