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수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [확률] 마스크
BLUESPEAR 2020.07.03 07:42 조회 923
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

블루의 집에는 KF94-흰색마스크가 30장, KF94-검은색 마스크가 20장, 덴탈마스크가 50장, 그리고 일반 부직포 마스크가 25장이 있다. 블루는 매우 활발해서 매일 밖으로 나간다(사실은 매일 학원을 가는 길이었다) 그렇다면, 블루가 밖으로 나갈 때 쓸 마스크를 확률로 각각 구하시오(기약분수로 나타내주시고 진분수로 해주세요)

 

문제가 쉽긴 한데 제가 배운 개념 상..... ㅠㅠ 죄송합니다 ㅠㅠ

이 문제 어떠셨나요?

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  •  
    infinitepi Lv.9 2020.07.03 16:43 비밀댓글
    확인요청중
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수1
    •  
      BLUESPEAR Lv.5 2020.07.03 18:02

      저랑 답이 달라서 그런데 풀이도 적어주세요

      좋아요0
  •  
    infinitepi Lv.9 2020.07.03 16:44

    그리고 가분수가 아니라 진분수겠죠

    댓글 작성하기 좋아요0 댓글수1
    •  
      BLUESPEAR Lv.5 2020.07.03 17:46

      아 그렇네요 수정할게요

      좋아요0
  •  
    피타구라스 Lv.9 2020.07.06 08:26 비밀댓글
    확인요청중
    비밀 댓글이 등록 되었습니다.
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