Question

A Convenience store sells two brands of orange juice.Brand A contains 8 fluid ounces and cost $1.28.Brand B countains 12 fluid ounces and cost $1.68.What is the difference in cost,in dollars,per fluid ounces between the two brands of juice?

Answer 1

Brand B is cheaper by $0.02 per fluid ounce.

Explanation:

As a rule, "of" means multiply, and "per" means divide.

We have been asked for "cost, in dollars, per fluid ounces".

We need to divide cost, in dollars, by fluid ounces.

Brand A:

`$1.28 / 8 = $0.16` per fluid ounce.

Brand B:

`$1.68 / 12 = $0.14` per fluid ounce.

The difference between brand A and brand B is $0.02 per fluid ounce, with brand B being cheaper.

Answer 2

Brand A is expensive. Unit costs are `$0.16` for Brand A and `$0.14` for Brand B.

Explanation:

Let me find cost of per ounce first.

Brand A `Cost=($1.28)/8 = $0.16` per ounce.

Brand B `Cost=($1.68)/12 = $0.14` per ounce.

The difference is:

`$0.16-$0.14 = $0.02` per ounce.

Brand A is more expensive (2 cents) compared to Brand B in terms of cost of per ounce volume.