A room is 10 m long and the breadth of the room is 7 m and height is 2.5 m respectively. Find the area of the four walls of the room. Find the cost of white washing the four walls and the roof of the room at the rate of 60 paise per square metre.
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Answer:
Given: length=10m
Breadth= 7m
Height=2.5m
Step-by-step explanation:
area of four walls = 2h×[L+B]
=2×2.5[10+7]
=5.0×17
=85.0m²
cost = 85.0×60
Rs =5100.0
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