The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 12.8 m3. The breadth of the wall is
Given: The volume of a wall is 12.8 m3.
Height is 5 times the breadth and Length is 8 times the height.
Let breadth = x
∴ Height = 5x
⇒ Length = 8 × (5x) = 40x
Volume of a Cuboid is given by: l × b × h (here l, b, h are, length, breadth, height respectively)
∴ l × b × h = 12.8
⇒ x × 5x × 40x = 12.8
⇒ 200x3 = 12.8
⇒ x3 = 
m3 = 
⇒ x= ∛ 
m = 
m = 0.4 m
∴ x = 0.4m = 0.4 × 100 = 40cm
That is Breadth is: 40cm
40