Past exams available here (I looked at Math 2020, Science & English 2021): https://www.kice.re.kr/boardCnts/list.do?boardID=1500234&m=0403&s=suneung#contents CSAT: https://en.wikipedia.org/wiki/College_Scholastic_Ability_Test A solution to Q15 (and more) from Mathflix: https://www.youtube.com/watch?v=ap-tFP0y6I8 Asian Boss video on CSAT re-takers: https://www.youtube.com/watch?v=gS-Id1SFkug Subscribe to my channel to see more videos like this: null Support me with a monthly donation on Patreon and receive a gift from me and access to my podcast: https://www.patreon.com/Tibees Buy me a coffee (one-off donation): https://ko-fi.com/tibees Website: https://tobyhendy.com/ TikTok: https://www.tiktok.com/@tibees Twitter: https://twitter.com/TobyHendy Second channel: https://www.youtube.com/channel/UCOZE5llobz3pjPRP69d0Ejg