Question

The area of four wall in a room is 120 sq. m. The length is twice the breadth. If the height of the room is four metre find the area of the floor

Answer 1

Hello,

Let breadth be x, then length 2x. Height 4m.

so,
2(x+2x) * 4 = 120
2(3x)*4 = 120
24x = 120
x = 120/24
x = 5

Breadth = x = 5m
length = 2x = 10m

area = lb = 5*10 sq.m = 50 sq. m

Area of the floor is 50 sq.m

Hope it helped you.

Regards.

PLEASE MAKE IT THE BRAINLIEST

Answer 2

Answer:

50m^2

Please mark the answer as "The Brainliest answer" if you like it

Step-by-step explanation:

Let say Breadth = x meter

Length = 2x

Height = 4 m

Area of four walls =  2x*4 + x*4 + 2x*4 + x*4

= 24x

24 x = 120

x = 5

Breadth = 5

Length = 2x = 10

Area of floor = 5 * 10 = 50 m^2