At Costless, yogurt costs $3.20 for 40 ounces, $2.16 for 28 ounces, and $0.66 for 6 ounces. Which is the better deal?

1 answer

To determine which yogurt purchase is the best deal, we need to calculate the price per ounce for each option.

  1. 40 ounces for $3.20: \[ \text{Price per ounce} = \frac{3.20}{40} = 0.08 \text{ dollars per ounce} \]

  2. 28 ounces for $2.16: \[ \text{Price per ounce} = \frac{2.16}{28} = 0.07714 \text{ dollars per ounce} \]

  3. 6 ounces for $0.66: \[ \text{Price per ounce} = \frac{0.66}{6} = 0.11 \text{ dollars per ounce} \]

Now, we compare the price per ounce for each option:

  • 40 ounces: $0.08 per ounce
  • 28 ounces: $0.07714 per ounce
  • 6 ounces: $0.11 per ounce

The best deal is the one with the lowest price per ounce, which is the 28 ounces for $2.16 at $0.07714 per ounce.

So, the 28-ounce yogurt at $2.16 is the better deal.