Question

1h and 350 cm respectively. Find the cost of plastering the toom at the rate of t12 per
10. The walls and ceiling of a room are to be plastered. The length, breadth and height of the room x 4.5​

Answer 1

Answer:

Given that

dimensions of the room

⇒Length = 4.5m

⇒Breadth = 3m

⇒height = 350cm

= 3.5m

Area of plastering = Area of 4 wall + Area of ceiling

Area of plastering = Curved surface area of cuboid + Area of rectangle

⇒2 × h × (l + b) + l × b

⇒2 × 3.5 × (4.5 × 3) + 4.5 × 3

⇒7 × (7.5) + 13.5

⇒52.5 + 13.5

⇒66m²

Total cost of plastering = 66× 12

=792

Therefore,

Total cost of plastering is

Rs.792.

Answer 2

Answer:

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Step-by-step explanation:

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