The length, breadth and height of a room are 5m, 4m and 3m respectively. Find the cost of white washing the walls of the room and the celling at the rate of ₹7.50per m^2
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Answer:
Total cost of white washing = 74×7.50= Rs 555
Step-by-step explanation:
Length, breadth and height of a room are 5 m, 4 m and 3 m.
Area of four walls of the room = 2h( l+b )
= 2×3(5+4)
= 6( 9 )
= 54 sq m
Area of the ceiling = l×b
= 5×4
= 20 sq cm.
Total area of the four walls and the ceiling of the room
= 54+20
= 74 sq cm
Cost of white washing = Rs 7.50 per sq m
Total cost of white washing = 74×7.50 = Rs 555
I hope this answer will help you...............
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