Question

A rectangular tank $25cm$ long and $20cm$ wide contains water to a depth of $5cm$. A metal cube of side $10cm$ is placed in the tank so that one face of the cube rests on the bottom of the tank.Find how many liters of water must be poured into the tank so as to just cover the cube ?

• A. $1L$
• B. $1.5L$
• C. $2L$
• D. $2.5L$

Answer 1

The correct option is D $2.5L$

Given that,

one face rests on bottom of rank

Depth of water $=5cm$

Edge of cube $=10cm$

So, powered water must cover that $5cm$

So, volume of water required

$=\frac{25\times 20\times 5}{1000}L$

$=2.5L$