The walls and the ceiling of a room 7 m long , 5 m wide and 3.5 m high are covered with paper 6 dm wide. Find the length of a paper required , if no length less than a metre can be bought
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Answered by
70
l = 7 m, b = 5 m and h = 3.5 m
Area of four walls = 2(l + b)h = 84 m2
Let the length of the paper be L.
L × 6/10 = 84
L = 140 m
Length of the paper required is 140 m.
Answered by
94
Answer: The length of a paper required is 198.33 meters.
Step-by-step explanation:
Since we have given that
Length of room = 7 m
Width of room = 5 m
Height of room = 3.5 m
So, Area of 4 walls and the ceiling would be
If the width of paper = 6 dm = 0.6 m
So, Area of 4 walls + Area of ceiling = Area of paper
Hence, the length of a paper required is 198.33 meters.
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