Bruce Corporation makes four products in a single facility. These products have the following unit product costs: A D Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Unit product cost $ 13.70 18.80 3.70 25.90 Products B C $ 9.60 $ 10.40 26.80 33.00 2.10 2.00 34.20 26.00 $ 72.70 $ 71.40 $ 10.00 39.80 2.60 36.60 $ 89.00 $ 62.10 Additional data concerning these products are listed below. D Grinding minutes per unit Selling price per unit Variable selling cost per unit Monthly demand in units 3.20 $ 75.50 $ 1.60 3,400 Products B C 4.40 3.70 $ 92.90 $ 86.80 $ 0.60 $ 2.70 3,400 2,400 2.80 $ 103.60 $ 1.00 2,600 The grinding machines are potentially the constraint in the production facility. A total of 53,100 minutes are available per month on these machines. Direct labor is a variable cost in this company. How many minutes of grinding machine time would be required to satisfy demand for all four products