The number of ways in which 21 objects can be grouped into three groups of 8, 7, and 6 objects,is

The number of ways in which 21 objects can be grouped into three groups 8, 7 and 6 object is

The number of ways in which 19 different objects can be divided into two groups of 13 and 6 is

The number of ways in which 12 students can be equally divided into three groups is

The number of ways in which 9 persons can be divided into three equal groups is

The number of ways in which 12 students can be equally divided into three groups is

The number of ways in which 9 persons can be divided into three equal groups is

The number of ways in which 12 different objects can be divided into three groups each containing 4 objects is (i) ((12!))/((4!)^(3)(!3)) (ii) ((12!))/((4!)^(3)) (iii) ((12!))/((4!)) (iv) none

The total number of ways in which 12 persons can be divided into three groups of 4 persons each, is