Explanation:
We know
Volume of a cylinder is 

 

where V is volume of the soda can = 36 (given )
 D is diameter = 4 (given )
 h is the height of the soda can 


 36 = 3.14 x (16/4) x h 
 36 = 3.14 x 4 x h
 36 = 12.56 x h 
∴ 36 / 12.56 = h
 h = 2.87
Now we know that the volume of a cone is given by 

 

 = 3.14 x 4 x 0.95
 = 11.932
 = 12 (approx.)
Therefore 12 units cube of volume can be easily fitted in a soda can of 36 unit cubes.