Avatarika
द्विप्रश्नः प्रतिवचनं च उक्तस्यैवार्थस्यावधारणार्थं पुनरुच्यते ;न किंचिदपूर्वमर्थान्तरमुच्यते ॥
In plain words
The question and answer come up twice for one reason: to drive the same point home, not to add to it. Nothing new is being said here, not a single new idea.
Close to the Sanskrit
The double question and its answer are repeated only to confirm the meaning already stated; nothing new, no different meaning, is being said.