Question

The volume of water required to fill half a tank of length 3 m, breadth 4 m and height 5 m is:

• A. $30m^3$
• B. $60m^3$
• C. $45m^3$
• D. $15m^3$

Answer 1

The correct option is A $30m^3$

Voulme of a tank in the shape of cuboid is the product of its dimensions.
$V=lbh$
$V=3\times 4\times 5m^3$
$V=60m^3$.

For filling half of the tank, we have to take the half of the volume.
So, water required for filling half i.e. $30m^3$.