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
11 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
11 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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