Length of the room is three times more than its breadth.The area of the room is equal to the length of the four sides of the room.Find the length of the room.
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let breadth = b
⇒ l=3b
area=lb
but it is given that area=4l
∴4l=lb,⇒4l/l=b
∴ b=4.hence l=3b=3(4)=12m
⇒ l=3b
area=lb
but it is given that area=4l
∴4l=lb,⇒4l/l=b
∴ b=4.hence l=3b=3(4)=12m
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