Question

3. The area of four walls of a room is 120 m. If the length of the room is twice its bread
the height is 4 m. And the area of the floor.​

Answer 1

★ Given :

• Area of four walls of a room is 120 m.
• Height is 4 m.
• Length of the room is twice its bread.

★ To Find :

• Area of floor ?

★ Solution :

According to the question :-

☯︎ Let the breadth of walls = x

☯︎ Let the length of walls = 2x

☯︎ Height = 4m

◆ We know that,

Area of the four walls = 2(l + b) h

Now, substitute the values :-

↦ 120 = 2(2x + x) 4

↦ 120 = 2 (3x) 4

↦ 120 = 8 (3x)

↦ 120 / 8 = 3x

↦ 15 = 3x

↦ x = 15 / 3

↦ x = 5

■ Hence, breadth is 5 m.

■ So, Length is 2x = 2 × 5 = 10 m.

◆ We know that,

Area of floor = length × Breadth

Now, substitute the values :-

↦ 10 × 5

↦ 50 m²

■ Hence, the area of the floor is 50 m².

Answer 2

Answer:

50 is the answer you can see fuul solution in above question

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