Answer:
i) The pressure acting on the base of <em>B</em> will be half the pressure acting on the base of <em>A</em>
ii) The pressure acting on the base of <em>B</em> will be the same as the pressure acting on the base of <em>A</em>
iii) The pressure on the base of drum <em>A</em> will be slightly less than the pressure on the base of drum <em>B</em>
Explanation:
The pressure acting on the base of the drum, P = h·ρ·g
Where;
h = The level of the liquid in the drum
 = The height of the drums
 = The height of the drums
ρ = The density of the liquid in the drum
g = The acceleration due to gravity ≈ 9.81 m/s²
i) If <em>A</em> is completely filled, we have  =
 = 
Therefore,  =
 =  ×
× ×g
×g
If <em>B</em> is half filled, we have,  =  (1/2)·
 =  (1/2)·
 = (1/2) ×
 = (1/2) ×  ×
× ×g
×g
Therefore,  = (1/2) ×
 = (1/2) ×  
 
The pressure acting on the base of <em>B</em> will be half the pressure acting on the base of <em>A</em>
ii) If both <em>A</em> and <em>B</em> are each filled with water (the same liquid), then the pressure on their bases will be  =
 =  ×
× ×g =
×g =  , the same, given that the acceleration due to gravity, <em>g</em>, is constant and the same in Nepal and India
, the same, given that the acceleration due to gravity, <em>g</em>, is constant and the same in Nepal and India
iii) If <em>A</em> is filled with water, and <em>B</em> is filled with salty water, we have that, the density of salty water is slightly higher than water, therefore, we get;
  =
 =  ×
× ×g <
×g <   =
 = 
The pressure on the base of drum <em>A</em> will be less than the pressure on the base of drum <em>B.</em>