Work plan for a week
Source:
June 8, 2008
geometryrectanglecombinatorics proposedcombinatorics
Problem Statement
Five girls have a little store that opens from Monday through Friday. Since two people are always enough for taking care of it, they decide to do a work plan for the week, specifying who will work each day, and fulfilling the following conditions:
a) Each girl will work exactly two days a week
b) The 5 assigned couples for the week must be different
In how many ways can the girls do the work plan?