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Function: get_footer
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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] [조합] 전원 연결하기......
원파
2020.06.09 06:11
조회 714
구분되지 않는 6개의 콘센트가 있는 멀티탭이 3개 있습니다.
또, 방의 벽에는 2개의 콘센트밖에 없습니다.
방에 있는 콘센트 2개는 모두 220V 고, 멀티탭 2개는 모두 220V 지만 멀티탭 1개는 일본에서 사온 것으로 110V 입니다.
오늘 일본에서 당신의 친구 한 명이 왔습니다. 그는 핸드폰, 노트북, 와이패드, wifi 기기 총 4개의 전자제품을 충전해야 합니다.
또, 당신은 핸드폰 2대, 노트북 1대, 와이패드 1대, 텔레비젼 2대를 항상 콘센트를 꽂아 두어야 합니다.
친구의 네 기기 중 노트북은 특이하게 220V 고, 나머지는 110V 짜리입니다.
당신의 여섯 기기는 모두 220V 입니다.
그렇다면 당신과 친구가 모두 전원을 연결할 수 있는 경우의 수를 구해봅시다.
(풀이과정은 필수입니다.)
지금 바로
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