Bruce Corporation makes four products in a single facility. These products have the following unit product costs:

$\backslash$table$[[,$Products,,,$],[$Direct materials,A$,$B$,$C$,$D$],[$Direct labor,$$13\mathrm{.}80,$$$9\mathrm{.}70,$$$10\mathrm{.}50,$$$10\mathrm{.}10,,,,],[$Variable manufacturing overhead,$18\mathrm{.}90,26\mathrm{.}90,33\mathrm{.}10,39\mathrm{.}90,,,,],[$Fixed manufacturing overhead,$3\mathrm{.}80,2\mathrm{.}20,2\mathrm{.}10,2\mathrm{.}70,,,,],[$Unit product cost,$26\mathrm{.}00,34\mathrm{.}30,26\mathrm{.}10,36\mathrm{.}70,,,,],[,$$$62\mathrm{.}50,$$$73\mathrm{.}10,$$$71\mathrm{.}80,$$$89\mathrm{.}40,,,,]]$

Additional data concerning these products are listed below.

The grinding machines are potentially the constraint in the production facility. A total of $53,200$ 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?

Multiple Choice