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The area of four walls of a room is 120 m2. If the length of the room is twice its breadth andthe height is 4 m, find the area of the floor. |
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Answer» Let breadth of the room = b mLength= 2b mHeight= h= 4m1) area of the four walls of the room = 2(length+breadth)*h2(2b+b)*4=120m^28*3b=120b=120/(8*3)b=5mThereforeBreadth=b=5mLength=2b=2*5=10m2)area of the floor= length*breadth=10m*5m=50m^2 |
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