# Food - Unit Cost

by brandy
(trenton, tn, usa)

Save a cash register receipt from a shopping trip to the food market, or borrow one from a family member or friend. The cost of four prepackaged food items that are sold by weight and the cost of at least three fresh fruits, or vegetables need to appear on the receipt. If you have no access to a receipt with these items, then you will need to go to the store and write down the cost information, or find a grocery advertisement online. Do not use liquids such as milk, juice, or soda because these are sold by volume and not by weight. Also, do not include ingredients like flour, sugar, oil, dry beans, etc. because these items are not prepackaged foods.
Fruits and vegetables are sold by the pound. Add up your prices per pound for the fruits and vegetables and find the average cost per pound. (Example: If bananas are .79 per pound and apples are .59 per pound, the average is calculated like this: (.79 + .59)/2 = 1.38/2 = .69 per pound on average for the two fruits.)
Locate the weight of your prepackaged food items. (For example, on a box of Frosted Flakes it says 15 oz.)
Add up all of the weights for your prepackaged items in ounces, and then add up all of the costs for your four prepackaged items.
From the totals, find the average cost per ounce of prepackaged items. Convert your results to cost per pound. (Hint: How many ounces in a pound?)
Now, compare the cost per pound of unprocessed food compared to prepackaged processed food. Discuss your comparison. Are you amazed or did you expect these results?
Respond to at least two of your classmates’ postings. Do the calculations seem reasonable? Based on the posting you authored and the postings you read, do we seem to be paying for the product, convenience or the packaging?

### Comments for Food - Unit Cost

 Apr 12, 2011 Food - Unit Cost by: Staff --------------------------------------------------------- Part II The answer: Comparison of costs: By weight, prepackaged food costs almost three times as much as unprocessed food. If you spend \$1 on prepackaged food, you could buy the same amount of food (by weight) for 35 cents if you are willing to buy unprocessed food. Calculations are shown below I got the following prices off the Safeway web site: Crisp Fuji Apples: \$.79 per pound Broccoli Crowns: \$1.49 per pound Red Ripe Tomatoes on the Vine: \$.99 per pound Sweet Green Seedless Grapes: \$.79 per pound Fruits & Vegetables, Average cost per pound = (.79 + 1.49 + .99 + .79)/4 Average cost per pound = \$1.02 Prepackaged items: Value Pack Salmon Fillets: \$11.99 for 32 oz Hunt's Pudding Cups: \$1, 4-pack, 3.5-oz. Hunt's Uncle Ben's Converted Brand Rice: \$4.99 for 48 oz Kellogg's Raisin Bran: \$1.79 for 20 oz Ghirardelli Brownie Mix: \$2.00 for 20 oz Total weight of pre-packaged food: 32 oz + 3.5 oz + 48 oz + 20 oz + 20 oz = 123.5 oz Total cost of pre-packaged food: \$11.99 + \$1 + \$4.99 + \$1.79 + \$2.00 = \$21.77 Average cost per ounce: \$21.77/123.5 oz = \$.18 per ounce Convert ave cost per ounce to ave cost per pound = (\$.18/1 oz)*(16 oz/1 pound) = \$2.88 per pound Comparison of costs: Unprocessed food: \$1.02 per pound Prepackaged processed food: \$2.88 per pound Prepackaged / Unprocessed food = (\$2.88/\$1.02)*100 = 282 % Unprocessed food/Prepackaged = (\$1.02/\$2.88)*100 = 35 % Thanks for writing. Staff www.solving-math-problems.com

 Nov 04, 2012 thank you by: Anonymous I wish i could give you the biggest hug ever, you have no clue how much you helped me, thank you so much and i actually understand it!