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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: mkdir

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 585
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 585
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 425
Function: initBoardView

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] 실제 있었던 일
외계파이 2021.06.03 06:35 조회 564
문제 푼 사람 4명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

외계파이는 부산 미포에서 15km/h의 속도로 열차를 타고 3.5km 떨어진 청사포로 갔다. 여기서 xkm/h의 속도로 2.5km 떨어진 송정에 갔다 거기서 다시 기차를 타고 똑같은 15km/h의 속도로 같은 길을 따라 미포로 돌아갔다.걸린 시간이 총 88분이라면 x는 얼마일까?(갈아타거나 타고 내리는 시간은 생각하지 않는다.)

 

이 문제 어떠셨나요?

글쎄요

4

어려워요

1

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  •  
    해결
    JM Lv.6 2021.06.04 01:15 비밀댓글
    비밀 댓글이 등록 되었습니다.
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  •  
    해결
    Sandwich Lv.5 2021.06.04 04:48 비밀댓글
    비밀 댓글이 등록 되었습니다.
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  •  
    khr519 Lv.8 2021.06.05 01:05

    단순 계산문제 인것 같네요...

    이곳은 청소년 수학 공동연구 커뮤니티입니다.

    연구 수준의 문제 까지는 아니라도, 풀만한 가치가 있는 문제를 내 주시면 좋겠습니다

    댓글 작성하기 좋아요0 댓글수0
  •  
    해결
    피카파이 Lv.8 2021.06.07 06:10 비밀댓글
    비밀 댓글이 등록 되었습니다.
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  •  
    해결
    미파도 Lv.5 2021.06.10 23:11 비밀댓글
    비밀 댓글이 등록 되었습니다.
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    •  
      미파도 Lv.5 2021.06.10 23:13

      일주일동안 확인 안하시네요.....

       

       

      좋아요0
    •  
      외계파이 Lv.4 2021.06.16 02:52

      죄송합니다

      시간이 없어서

      좋아요0
    •  
      미파도 Lv.5 2021.07.08 21:32

      저도 시간이 없어서 별로 못 와요

      좋아요0
  •  
    다시 도전
    tngkr Lv.4 2021.06.28 01:21 비밀댓글
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