At the grocery store, one brand of ice cream costs 4.50 for 48 ounces. The same brand costs $7 for 128 ounces or$3 for 64 ounces. which size has the lower unit price?

1 answer

To find the lower unit price, we need to compare the prices per ounce for each size.

For the first option: 48 ounces at $4.50, the unit price is 4.50 / 48 = $0.094 per ounce.

For the second option: 128 ounces at $7, the unit price is 7 / 128 = $0.054 per ounce.

For the third option: 64 ounces at $3, the unit price is 3 / 64 = $0.047 per ounce.

Among the three options, the size with the lower unit price is the third option, which costs $3 for 64 ounces.