Auditors 1, 2, and 3 work out of various offices. Each must be assigned to one, and only one, of three audit locations (A, B, or C).
The cost of sending each auditor to each location is listed below:
Audit Locations
Auditor 1
A
B
C
Auditor 2
$200
$300
$400
Auditor 3
$400
$300
$600
Auditor 4
$200
$200
$500
The minimum cost with which this assignment can be accomplished is:

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