Question

a hall is 24 m long and 16 m wide if the sum of the areas of the floor and ceiling is equal to the area of four walls find the height and volume of hall

Answer 1

hope it helps and answer is in this photo

Answer 2

L=24
B=16
Area of rectangle(floor)=length×breath
Area of rectangle(ceiling)=length×breath
CSA=2(l+b)×h
Lb+Lb= 2(l+b)×h
24×16+24×16=2(24+16)h
768=80h
h=768/80
h=9.6
Volume of cuboid=l×b×h
=24×16×9.6
=3686.4m cube