Area of 4 walls of a hall is 1170m square. If the height and the length of the room are in the ratio of 1:1 and the height and the breadth are in the ratio of 5:8 find the area of the floor.
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Area of 4wall =2h(l+b)
77=2h(7.5+3.5)
77=2h*11
7=2h
h=3.5m
77=2h(7.5+3.5)
77=2h*11
7=2h
h=3.5m
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