The demand for a machine part S is 100 units. Each unit of S requires 1 unit of T and 2 units of U. Each unit of
T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z.
One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to
make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to
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