please answer me
A room is 6 metres long, 4 metres broad
and 3.5 metres high. Find the area of the
four walls. Also find the area of the ceiling.
If it costs 0.25 to whitewash 1 dm² of wall,
find the cost of whitewashing the four walls
and the ceiling.
Answers
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Dimensions of a room-
length= 6 m
breadth=4 m
height= 3.5 m
Therefore, area of the 4 walls = 2h(l+b)
=2*3.5(6+4)
=7*10= 70m²
Area of the ceiling= l*b
=6*4 = 24m²
So, portion of the room to be white-washed
=(70+24)m²
=94 m²
=9400 dm²
therefore, cost of white washing @ 0.25 per dm²
=Rs.(0.25 * 9400)
=Rs. 2350
Hope this helps..
If it does, plz mark as BRAINLIEST!!!!!! I
length= 6 m
breadth=4 m
height= 3.5 m
Therefore, area of the 4 walls = 2h(l+b)
=2*3.5(6+4)
=7*10= 70m²
Area of the ceiling= l*b
=6*4 = 24m²
So, portion of the room to be white-washed
=(70+24)m²
=94 m²
=9400 dm²
therefore, cost of white washing @ 0.25 per dm²
=Rs.(0.25 * 9400)
=Rs. 2350
Hope this helps..
If it does, plz mark as BRAINLIEST!!!!!! I
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