# Q 7.     A room is 4 m long and 3 m 50 cm wide. How many square metres of carpet is needed to cover the floor of the room?

Given that,
Length of the room = 4 m
And it's breadth = 3.5 m
Area of the room = = length $\times$ breadth
$= 4 \times 3.5$
= $14 m^2$

Hence the area of carpet needed is $14 m^2$

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