Question

A cubical tank can store 5040 litre of water. The external dimension of the tank are 2.2m*1.7m*1.7m. If the walls of the tank are 5 cm thick? then what is the thickness of the bottom of the tank

Answer 1

Solution:-

Let the thickness of the bottom of the tank be 'x' cm.

Then,

{(220 - 5 - 5)*(170 - 5 - 5)*(170 - x) = 5040*1000       [As 1 liter = 1000 cu cm]

210*160*(170 - x) = 5040000
170 - x = 5040000/33600
170 - x = 150
x = 170 - 150
x = 20 cm

The thickness of the bottom of the tank is 20 cm.
Answer.

Answer 2

Answer:

Let the thickness of the bottom of the tank be x cm

(220-5-5) ×(170-5-5) ×(170-x)=5040×1000

(As liter =:1000 cu cm )

210×160×(170-x) = 5040000

170-x= 5040000/33600

x=170-150

x=20