The walls and ceiling of a room 7m long, 5m wide and 3.5 m high are covered with paper 6 dm wide. Find the length of paper required, if no length less than a metre can be bought.
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Step-by-step explanation:
Answer:
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.
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