Question

the walls and ceiling of a room are the Length breadth and height of a room are 4.5 and 3 and 3.5 respectively find the cost ofplastringat the rate of 12perm2​

Answer 1

Answer:

first find the area of room = 2( l + b) × h

= 2 ×( 4.5 + 3.0) × 3.5

= 2× 7.5 × 3.5

= 52.5 m²

cost of plastering = 52.5 × 12 = 630

cost of plastering is 630