수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 깁깁깁깁깁깁깁깁깁깁깁님

† J.H † 2020.03.09 02:08 조회 373

문제 푼 사람 1명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

한 자동차가 도로(100km)를 달리는데 시속 60km으로 달린다.

그런데 첫 번째 자동차 앞에 한 차가 끼어들어 30초 동안 시속 20km로 바뀌었다. 첫번째 자동차가 12시에 출발점에서 출발했을 때, 몇 시에 도로 끝에 도착하는가?(풀이 필수)

이전글 퀴즈7

다음글 22등!

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수티브 잡스 Lv.6 2020.03.09 02:20 비밀댓글

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- † J.H † Lv.9 2020.03.09 02:27 비밀댓글
  
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