Jon has complete and transitive preferences on bundles of sodas and pizza. Jon finds one soda and two slices of pizza at least as good as two sodas and a slice of pizza. Moreover, two sodas and a slice of pizza is not at least as good as one soda and two slices of pizza. Then, we know that:

1. Jon is indifferent between two sodas and one slice of pizza and one soda and two slices of pizza.

2. Jon prefers one soda and two slices of pizza to two sodas and one slice of pizza.

3. Jon's utility function is differentiable.

4. Jon's preferences satisfy more is better.

5. Jon prefers two sodas and one slice of pizza to one soda and two slices of pizza.

2. Jon prefers one soda and two slices of pizza to two sodas and one slice of pizza.

Explanation:

Completeness is the economic concept - that 'one good is atleast as good as itself'

Transitivity is that a rational consumer - if prefers good A to good B, good B to good C. Then he prefers good A to good C.

Let : - 1 soda & pizza slices be product combination A; and 2 sodas & 1 pizza slice as product combination B.

Consumer Jon finds product combination A at least as good as product combination B. But, he doesn't find product combination B as at least as good as product combination A.

So, as per above rules - Consumer prefers product combination A over product combination B.