Given the following information, choose the brand that is the better buy.

Brand A: $2.16 for 18 ounces
Brand B: $1.50 for 12 ounces
Brand C: $2.26 for 20 ounces
Brand D: $1.95 for 16 ounces
a.
Brand A
b.
Brand B
c.
Brand C
d.
Brand D

1 answer

To determine which brand is the better buy, we need to calculate the unit price (price per ounce) for each brand.

  1. Brand A:

    • Price: $2.16
    • Ounces: 18
    • Unit Price: \( \frac{2.16}{18} = 0.12 , \text{per ounce} \)
  2. Brand B:

    • Price: $1.50
    • Ounces: 12
    • Unit Price: \( \frac{1.50}{12} = 0.125 , \text{per ounce} \)
  3. Brand C:

    • Price: $2.26
    • Ounces: 20
    • Unit Price: \( \frac{2.26}{20} = 0.113 , \text{per ounce} \)
  4. Brand D:

    • Price: $1.95
    • Ounces: 16
    • Unit Price: \( \frac{1.95}{16} = 0.121875 , \text{per ounce} \)

Now we can compare the unit prices:

  • Brand A: $0.12 per ounce
  • Brand B: $0.125 per ounce
  • Brand C: $0.113 per ounce
  • Brand D: $0.121875 per ounce

The lowest unit price is for Brand C at $0.113 per ounce.

Thus, the better buy is Brand C.

The correct answer is c. Brand C.