Three spheres, each of mass 'm' and radius 'R' are kept in touch with each other such that their centres from an equilateral triangle. The M.I. of the system about a median of triangle is

Three spheres, each of mass 'm' and radius 'R' are kept in touch with

1.	Three spheres, each of mass 'm' and radius 'R' are kept in touch with each other such that their centres from an equilateral triangle. The M.I. of the system about a median of triangle is
Answer» `(21)/(5)"MR"^(2)` `(16)/(5)"MR"^(2)` `(7)/(2)"MR"^(2)` `(4)/(5)"MR"^(2)` Answer :B