Consider the spreadsheet for Stone Age Surfboards provided below. Use this data

Question

Consider the spreadsheet for Stone Age Surfboards provided below. Use this data to answer the following question(s), using the Standard Solver.

Stone Age Surfboards is a small manufacturer of two types of popular low-tide surfboards, the Graystone and the Lava models. The manufacturing process consists of two departments: fabrication and finishing. The fabrication department has 8 skilled workers, each of whom works 9.25 hours per day. The finishing department has 5 workers, each of whom works a 6-hour shift per day. Each pair of Graystone surfboards requires 2.5 labor hours in the fabrication department and 2 labor hours in finishing. The Lava model requires 4.2 labor-hours in fabrication and 3.6 labor-hours in finishing. The company operates 6 days a week. It makes a per unit profit of $40 on the Graystone model and $60 on the Lava model. The company anticipates selling at least twice as many Lava models as Graystone models.

1 Stone Age Surfboards 3 Data Product 5 Department 6 Fabrication 7Finishing Graystone Lava 2.5 4.2 3.6 Limitation (hours) 74 30 S40.00 $60.00 9 Profit/Unit 10 12 Model 13 Graystone Lava antity Produced Hours Used 15 Fabrication 16 Finishing 17 18 19 Market Mixture 20 21 22 Profit Contribution Excess Lava Total Profit What is the total number of hours used for fabrication? O 30.0 O 35.5 54.5 O 43.8

Explanation / Answer

STarting with A1 in the excel sheet

After solving

the total number of fabrication hours is 34.4 hours

Graystone Lava Fabrication 2.5 4.2 Finishing 2 3.6 qty produced 2 7 Hours used Fabrication =+B5*B2 =+C5*C2 =+SUM(B8:C8) 74 Finishing =+B5*B3 =+C5*C3 =+SUM(B9:C9) 30 Profit/unit 40 60 Total profit =+B12*B5 =+C12*C5 =+B14+C14

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