Question

The Central Hall of school is 18 metre long and 12.5 metre wide a carpet is to be laid on the floor leaving a width of 50 cm from the walls find the area of floor left. uncarpeted​

Answer 1

Answer:

The Central Hall of school is 18 metre long and 12.5 metre wide a carpet is to be laid on the floor leaving a width of 50 cm from the walls find the area of floor left.  The area of the floor not covered by the carpet = 31.5 m²

Step-by-step explanation:

To get the area of the floor left uncarpeted, we need to get the area of the floor less the area of the carpet.

We need to get the dimensions of the floor.

The dimensions are given as follows:

Width  = 12.5 + (2 × 50cm)

2 × 50 cm = 100 cm

Let's convert this to meters as follows:

= 100/100 = 1 meter

Width = 12.5 + 1 = 13.5 meters

The length  = 18 + 1 = 19 meters

The area of the floor = 19 × 13.5 = 256.5 m²

The area of the carpet = 12.5 × 18 = 225 m²

The area of the floor not covered by the carpet is given by:

= 256.5 - 225 = 31.5 m²