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/i03.jpg pounds for $3.91
brand c: 910 grams for $3.10

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

Ithink the correct answer is d.