There is 0.9 (repeating) apple.

edit:

Math is very precise, and has very obvious correct and incorrect answers. Language much less so. So when we have a question like this, it FEELS like there should be an obvious and precise answer because we are talking about math, BUT we are using language to talk about math, so we are going back to an imprecise realm; which may feel confusing and wrong.

This is also the effect behind the engagement bait word problems and order of operations problems you see on social media.