ok, we need to focus on btw 어느 and 어떤. both are determiner that modify substantive. <어느> 1. the word when we ask which one is the subject among many 어느 것이 맞는 답이니? 2. indefinite person or thing that we don't need to pick on or know clearly among many 눈이 내리던 어느 겨울밤이었다. 3. before 정도 or 만큼 - the word used when we ask about extent or amount, or say about those extent or amount 주량이 어느 정도야? 4. noun+‘나/이나’, ‘든(지)/이든(지)’, ‘라도’ - the word when we say about related objects that are not really limited particularly 어느 것이든지 가리지 말고 먹어. <어떤> 1. (interrogative sentence)the word used when we ask of person or object's character, content, status, quality 신혜성은 어떤 사람이야? 2. (interrogative sentence)the word used when we ask which one is the subject among many 슈주 중에 어떤 애가 더 맘에 들어? 3. the word used when we say that we don't make clear about subject 한국 여행을 갔다가 어떤 잘 생긴 사람을 만났는데, 나중에 알고 보니 연예인이더라. 4. the word used when the related subject is not really limited especially 어떤 방법으로든 최강 창민을 만나고 싶어! well..it would be too long if we look into it. :) hope it will helpful for u, 유메짱. have a great morning.

Hi Yume ^^ Your question has been asked before, so I copy my answer here: You can use 어떤(a shortcut for 어떠한, 어떠하다 = "to be like what") when you ask about something or someone, especially characteristics, personality, conditions, contents/substance. It's also used as "some" as in "some people". 그 사람 어떤 사람이에요? What is s/he like? 어떤 사람이 되고 싶어? What kind of person do you want to be? 어떤 게 나을까? Which one would be better? 어떤 사람들은 그 노래 안 좋아해. Some people dislike the song. You can use 어느 when you're asking which one it is. 어느 거? / 어느 거 말이야? Which one? (among those things) 어느 나라 사람이에요? Where are you from? (His/her country is supposed to be one of all the countries, 어떤 나라 사람이에요? doesn't make sense unlike 어떤 나라예요? does.) __________________________________________ Let's use you and me as an example. We're shopping some clothes and you found what you've been looking for among other clothes, I don't know which one is that. Me : 어느 거? Which one? You : 저거. That one. Me : 어떤 거? Which one? You : 줄무늬 있는 거. The color striped one.

어느것 like which one 어떤것like what kinds of ...