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

Given

length of floor = 4m

breadth of floor = b = 3 m 50 cm = 3.50 m

 Find out

We have to determine the area of the floor that is not carpeted.

Solution

We know that area of rectangle is given by

Area of rectangle = length × width

Area of floor = l × b = 5 × 4

= 20 m2

Area of square carpet = 3 × 3

= 9 m2

Area of floor that is not carpeted = 20 – 9

= 11 m2

Answer

∴ Area of the floor that is not carpeted is 11 m2

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