Question 870812
We know that the cost of the shirts is more than $5.  We know that the total cost was $1807.81, and that each person received two shirts (a pair).  
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What are the divisors of 180781?  293 and 617.
There is no way for each person to receive a pair of shirts, yet have the total come up to an odd number.
If they didn't get a pair, then one possibility is that there were 293 shirts made at a cost of $6.17 each.