A room is long 12m 8m broad and 4m high it has two doors each measuring 2.2m by 1.6m and two window each measuring 2.4m by 2.2m . Find the cost of white washing it's four walls at RS 7.70 per sq meter
Answers
Answer:
1096.48 rupees
Step-by-step explanation:
Length=12 m
Breadth =8m
Height =4m
Area of 4 walls=2(l+b)h
=2(12+8)×4
=2×20×4
=160 m^2
Area of two door=2(2.2×1.6)
=2 (3.52)
=7.04 m^2
Area of two windows=2(2.4×2.2)
=2(5.28)
=10.56 m^2
Total area of doors and windows=7.04+10.56
=17.60 m2
Now,
Area of 4 walls excluding doors and windows= 160-17.60
=142.40 m2
Now cost of white washing=142.40×7.70
=1096.48 rupees
Answer:
Answer:
1096.48 rupees
Step-by-step explanation:
Length=12 m
Breadth =8m
Height =4m
Area of 4 walls=2(l+b)h
=2(12+8)×4
=2×20×4
=160 m^2
Area of two door=2(2.2×1.6)
=2 (3.52)
=7.04 m^2
Area of two windows=2(2.4×2.2)
=2(5.28)
=10.56 m^2
Total area of doors and windows=7.04+10.56
=17.60 m2
Now,
Area of 4 walls excluding doors and windows= 160-17.60
=142.40 m2
Now cost of white washing=142.40×7.70
=1096.48 rupees
Step-by-step explanation: