Question

Ashley wants to purchase some bottles of soda to take along to her friend's house for a sleepover. While shopping, Ashley discovers the following prices for bottles of Pepsi. Which of these options is the best buy?
A) $8.75 for 5 bottles
B) $5.97 for 3 bottles
C) $6.36 for 4 bottles
D) $12.60 for 7 bottles​

Answer 1

The option that is the best buy is option 3.

What is the best buy?

The best buy is the option that has the lowest average cost. Average cost is the total cost of the bottles divided by the number of bottles.

Average cost = total cost / number of bottles

Option 1: $8.75 / 5 = $1.75

Option 2: $5.97 / 3 = $1.99

Option 3: $6.36 / 4 = $1.59

Option 4: $12.60 / 7 = $1.80

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