Question

84 ounces of liquid detergent for $10.6448 ounces of liquid detergent for 6.19$Which is the better buy?

Answer 1

To know which is the best option we have to compute the price of one ounce for each case, for that we divide the price by the number of ounces.

p is the price of 1 ounce of detergent.

Case 1:

`p=(10.64)/(84)\approx0.127.`

Case 2:

`p=(6.19)/(48)\approx0.129.`

Therefore the price for 1 ounce is less for the first case.

Answer: 84 ounces for $10.64.