Given parameters:
Volume of water in the tank = 750litres
Length of the tank = 150cm
Breadth of tank = 50cm
Unknown:
Height of the tank = ?
To solve this problem, we must understand the concept of volume. Volume is a property of solid bodies. It is mathematically derived as:
 Volume  = length x Breadth x height
The unknown here is the height and we should go ahead to solve for it.
But the units are inconsistent.
Therefore, convert litres to cm³;
     1 litre  =  1000cm³ Â
     750 litres = 1000 x 750  = 750,000cm³   Â
Now input the parameters and solve for the height;
     750000 = 150 x  50 x height
        height  = [tex]\frac{750000}{7500}[/tex]  =  100cm
Therefore, the height of the tank is 100cm
