Assuming this scenario implies each needs to eat 1 banana and 1 apple, the Thomas Sowell outline still holds: Alice, having 2+ bananas, needs 1 apple more than

Assuming this scenario implies each needs to eat 1 banana and 1 apple, the Thomas Sowell outline still holds: Alice, having 2+ bananas, needs 1 apple more than the extra banana. And vice versa for Bob. Any bananas/apples beyond those needed to eat don't have any value at all.