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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 비상탈출[논리?]난이도:OOOOO
khr519
2020.09.03 05:57
조회 547
엑시트 처럼 독가스가 퍼져서 도시를 빠져나가야 한다.
독가스는 강을 건널수 없으므로 강을 건너 대피하려고 한다.
그런데 어두워서 배에 조명등을 달아야 한다.
그런데 조명등은 2개 뿐이다
배가 유람선,어선,쾌속정(이게 왜 강가에 있지?),요트 이렇게 4대이고
각각 속도는 30km/h,48km/h,120km/h,60km/h 이고
강폭이 800m이라면
시민들이 모두 배에 탑승했을때 배 4대가 모두 탈출하려면 몇 분이 걸리는지 구하시오
(단 조명등을 단 배만 강을 건널수 있고 한 배에 조명등을 2개 달 수 있다
즉 한 배가 조명등을 가지고 돌아와야 다른 배가 출발할 수 있다
사람들은 배 4대가 모두 대피하면 배에서 내린다)
지금 바로
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