Where is the error in the fetch request?

Question

MySQL

SELECT `id`, `user` FROM `allusers` ORDER BY `user` DESC LIMIT 20,30

I expect 10 entries in the answer (from 20 to 30). Answer:
Display lines 20 - 49 (30 in total , Query took 0.0011 seconds) [user: 5167886 - 3916274]
Am I wrong?

Answer 1

LIMIT 20,10 <- number of records starting from 20