Find the length and breadth of a room if the lateral surface area of a room is 84 m², height of the room is 6 m and the length of the room is 1 m more than its breadth.
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Let the breadth of the room be x . Then the length of room = x+1
The lateral surface area of the room =2(l+b)h
The length of the room = x+1= 3+1 = 4m and breadth of the room = x= 3m .
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