10 miss jones owns a factory that makes pens. she has received an order for a large quantity of pens and she knows it she used 8 machines, it would take 72 hours for enough pens to be made mies jones plans to start making pens at aan on monday with 2 machines, she can start using a third machine at 5pm on tuesday, finally 3 more machines will be free at 10am on wednesday, approsimately when vill enough pens be made?