Question

Given the following prices, explain why Brand B is the better buy. (Hint: 16 ounces = 1 pound and 1 pound = 453.59 grams)

Brand A: 54 ounces for $4.89
Brand B: 2007-03-06-00-00_files/i0300000.jpg pounds for $3.91
Brand C: 910 grams for $3.10

Answer 1

Explanation:

Calculate the unit price of Brand A: 54 ounces = 3.375 pounds; 4.89/3.375 is approximately $1.45 per pound. Calculate the unit price of Brand B: 2 3/4 = 2.75; 3.91/2.75 is approximately $1.42 per pound. Calculate the unit price of Brand C: 910 grams is approximately 2 pounds; 3.10/2 is approximately $1.50 per pound. Comparing the unit prices, Brand B has the cheaper unit price.

Answer 2

convert all to lb and find cost per 1lb

A.
54oz, convert to lb
54/16=3.375lb
find per lb
4.89/3.375=$1.4488888 per lb

B.
2 and 3/4=2.75, 3.91/2.75=$1.42181 per lb

C. 910/453.59=2.00621lb
3.10/2.00621=$1.545 per lb



compare
A: $1.4488888 per lb

B: $1.42181 per lb

C: $1.545 per lb


B is cheapest, followed by A then C


B is best buy