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

What is wrong with

5x4-3x3 ?

a carpet 4m by 3m is laid in a room 5m square .find the area of the part of the floor left uncovered

11sq m

To find the area of the floor that is not carpeted, we first need to calculate the area of the entire floor and then subtract the area of the carpet.

The area of a rectangle can be found by multiplying its length by its width. In this case, the floor has a length of 5m and a width of 4m. So, the area of the floor is:
Area of the floor = length * width = 5m * 4m = 20 square meters

The carpet, on the other hand, is a square with side length of 3m. The area of a square is found by squaring its side length. Therefore, the area of the carpet is:
Area of the carpet = side length^2 = 3m^2 = 9 square meters

To find the area that is not carpeted, we subtract the area of the carpet from the area of the floor:
Area not carpeted = Area of the floor - Area of the carpet = 20 square meters - 9 square meters = 11 square meters

So, the area of the floor that is not carpeted is 11 square meters.