Question

The length, breadth and height of a hall are 50 m, 14 m and 4 m, respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of AED 12.50 per m2​. please answer.

Answer 1

Given

•Length(l) = 50m

•Breadth (b) = 14m

•Height (h) = 4m

•Rate = Rs.12.50

✯total surface area of the White wash of the rooms and the ceiling

⇒2 × h (l + b) + (l × b)

⇒2 × 4(50 + 14) + (50 × 14)

⇒8(64) + 700

⇒512 + 700

⇒1212 m²

✯Cost of white wash

⇒rate × area

⇒12.50 × 1212

⇒Rs.15,150

cost of white washing is 15,150 rupees

Answer 2

Answer:

The cost of white washing is Rs. 15,150

Step-by-step explanation:

Given:

• Length (l) = 50 m

• Breadth (b) = 14 m

• Height (h) = 4 m

• Rate = 12.50

Find :

• The cost of white washing the walls of the room and the ceiling .

Solution :

★ Area of 4 walls + Area of ceiling

⇒ 2 (l + b) × h + l × b

⇒ 2 (50 + 14) × 4 + 50 × 14

⇒ 2 (64) × 4 + 700

⇒ 128 × 4 + 700

⇒ 512 + 700

⇒ 1212

★ Total area = 1212 m²

Cost = rate × area

⇒ 12.50 × 1212

⇒ 15,150

Therefore,

The cost of white washing is Rs. 15,150