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Function: get_footer

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Function: require_once

수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 시험보기 5분전에 뭐하니...?
† J.H † 2020.04.10 08:29 조회 609
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

안나, 엘사, 크리스토퍼, 올라프, 염소(스밴?) 이 길을 걸어가고 있다. 이들중 둘은 2m/s, 나머지는 2.5m/s 의 속도로 걷는다. 이들이 ?m지점의 목적지로 움직이는데 ?m가 모두 절벽이며 다리의 길이가 ?m이다(한마디로 다리의 한쪽 끝에서 한쪽 끝까지 가야 한다는 소리죠). 다리는 한번에 한 명씩 만 갈 수 있다. 이들이 모두 걷너는데 5분 20초가 걸렸다면 ?의 값은?

(풀이 포함이며 여러 개가 나온다면 모두 적어주세요)

이 문제 어떠셨나요?

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