Question

Which is the better buy: 12.5 oz of Doritos for $3.79 or a 3 oz bag for $1.00 bag?

Answer 1

`$3.79` for `12.5` oz. is cheaper per ounce than `$1.00` for `3` oz.

Explanation:

Without much effort we can see that
`$1.00` for `3` oz `rarr $4.00` for `12` oz.
but you can get more (`12.5` oz.) for less than `$4.00` (for `$3.79`) if you buy `12.5` oz. for `$3.79`