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Puget World, Incorporated, manufactures two models of television sets, the N $800L$ model and the N $500$ model. Data regarding the two products follow:

$\backslash$table$[[,\backslash$table$[[$Direct Labor$-$ Hours$],[$per Unit$]],$Annual Production,$\backslash$table$[[$Total Direct$],[$Labor$-$Hours$]]],[$Model N $800$ XL$,3\mathrm{.}0,3,000$ units,$9,000],[$Model N $500,1\mathrm{.}4,15,000$ units,$\frac{21,000}{30,000}$