A fun Brain Teaser - How Many Didn't?

A fun Brain Teaser - How Many Didnt?

Here's a fun and interesting Brain Teaser. Try not to overthink it.

In the Bay...

30 sharks, 28 dolphins... How many Didn't?

Correct answer in two days (Thursday).

Updates
8 mo
The AI bot, as so often happens, ruined this question. Try to answer it without looking at what the AI bot said.

I would hide her response or block her if I could, but GaG doesn't allow that against AI bots.
Updates
8 mo
The correct answer is 10.

When you say the question, it can also be said as "30 sharks, 20 ate dolphins... How many Didn't?

30 minus 20 is 10!
A fun Brain Teaser - How Many Didn't?
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