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Mathematics-Online problems:

Interactive Problem 107: Forming Groups

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
How many possibilites do exist to divide 9 persons into 3 3-head-groups?

solution:     

How many possibilites remain valid if two given persons are not allowed in the same group?

solution:     


   

see also:

  automatically generated: 8/11/2017