Question

A cuboidal tank can store 5040liters of water The external dimensions of tank are 2.2*1.7*1.7.If the walls of the tank are 5 cm thick then what is the thickness of the bottom of the tank

Answer 1

Volume of tank = 5040 litres = 5040000 cu.cm

Dimensions of tank = 2.2 m x 1.7 m x 1.7 m = 220 cm x 170 cm x 170 cm

Walls of tank are 5 cm thick.

Therefore, length = 220 - 5 - 5 = 210 cm

Breadth = 170 - 5 - 5 = 160

According to question,

l x b x h = 5040000

210 x 160 x h = 5040000

h = 150 cm

Then thickness of bottom = 150 - 5 - 5 = 140 cm = 1.4 m