27 The Central Police Department has five detective squads available for assignment to five open crime cases. The chief of detectives wishes to assign the squads so that the total time to conclude the cases is minimized. The average number of days, based on past performance, for each squad to complete each case is shown in following table.

CASE SQUAD A B C D E 1 27 7 3 7 14 2 30 6 12 7 20 3 21 5 4 3 10 4 21 12 7 12 8 5 8 26 24 25 13 Use the assignment model to find the best solution.