Answers

2015-01-22T19:55:50+05:30
Lenght= 15m
breadth= 12m
area of ceiling and floor 2*2(l+b)
2*2(15+12)=108m

Given that area of floor and ceiling is equal to area of 4 walls
Hence area of four walls= 108m
2h(l+b)=108
2h(15+12)=108
54h=108
h=108/54=2m
Now volume = l*b*h
15*12*2=360 metre cube

So volume of hall is 360 meter cube 
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2015-01-22T19:58:19+05:30
2[15+12]*h=2{12*15}
h=180/27 m =20/3 m
v=[15*12]20/3 
v=1200m3

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