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Question
The length , breadth and height of a room are 5 m, 4.5 m and 3 m, respectively. Find the volume of the air it contains.
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Solution
Length of the room = 5 m
Breadth = 4 . 5 m
Height = 3 m
\[\text { Now, volume = length } \times \text { breadth }\times \text { height }\]
\[ = 5 \times 4 . 5 \times 3\]
\[ = 67 . 5 m^3 \]
\[ \therefore \text { The volume of air in the room is 67 . 5 }m^3 .\]
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