Find the number of ways of dividing 6 couples in 3 groups if each group has exactly one couple and each group has 2 males and 2 females.

The number of ways of dividing 15 cards into 3 group of 5 cards each is

The number of ways of dividing 15 cards into 3 groups of 5 cards each is

Find the number of ways of dividing 4 distinct articles between 2 groups.

No.of ways of dividing 80 cards into 5 equal groups of 16 each is:

Find the number of ways in which 12 things be Divided into 4 equal groups

Find the number of ways in which 12 things be Divided into 4 equal groups

Find the number of ways of distributing 4 distinct articles between 2 groups, such that one group has 1 article and another one has 3 articles.

The number of ways of dividing 15 men and 15 women into 15 couples each consisting a man and a woman is

The number of ways of dividing 15 men and 15 women into 15 couples each consisting a man and a woman is