Question

plse give solution of this ans.urgently

Answer 1

CSA of the container = pi*6^2 cm^2 and 2 cm height is to be displaced. So a minimum volume of 72 pi cm^3 is to be achieved. The volume of each sphere is 4*3.375/3 pi = 4.5 pi cm^3. So we need 72/4.5 = 16 spheres.