What mean by XP required?

Question

I am new to this app

Answer 1

Honestly the hints in the module are just a way to get people to lose their XPs. Even if you get it wrong there are always these people who post answers (to my annoyment)

Answer 2

https://www.sololearn.com/discuss/265734/?ref=app

Answer 3

If you want to cheat an answer in a tutorial, you can pay experience points you acquired joining in other activities of the app.

My suggestion: Don't.

Instead reread the module and just answer the question, because you're here to learn something.