Question: How many lbs. of pork roast (with a 15% shrinkage factor) should be bought to serve 600 portions that each weigh 3 oz? a. 625 lbs. b. 376 lbs. c. 133 lbs. d. 376 lbs.

Answer: To serve 600 portions of 3 oz each considering a 15% shrinkage factor, you need to buy approximately 133 lbs of pork roast. This accounts for the weight lost during cooking.

Calculating the Amount of Pork Roast Needed for 600 Portions

23 Oct 2022

Explanation:

Calculating Total Amount Needed: To begin, we know that each portion weighs 3 oz and there are 600 portions needed. Therefore, the total weight required is 1800 oz (3 oz * 600).

Converting to Pounds: Since 1 lb equals 16 oz, we convert the total amount to pounds which gives us 112.5 lbs (1800 oz / 16).

Adjusting for Shrinkage: To accommodate the 15% shrinkage factor during cooking, we divide the desired amount by 0.85 (100% - 15% = 85% or 0.85 in decimal form). This results in a total raw weight requirement of approximately 132.35 lbs.

Final Answer Selection: Among the answer choices provided, the closest amount to the calculated raw weight after shrinkage is 133 lbs, which is option c.

For further understanding on how to calculate weights, you can explore more here.

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