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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] 살의는 커피 향 보고 운 사람 손!
관종이
2020.01.19 08:46
조회 490
문제는 제목과 상관이 없습니다.
범인은 피해자의 휘발유 통에 구멍을 뚫어서 일정한 지점에 멈추게 하려고 한다.
피해자가 주유한 주유소에서 범인이 원하는 지점의 거리는 100km이다.
이때, 범인은 구멍의 지름이 1cm 늘어날 때마다 휘발유가 1초에 5ml씩 더 빠진다.
피해자는 60L를 주유하고, 휘발유 1L당 3km갈 수 있을 때, 구멍의 지름은 몇 cm이어야 될까?
지금 바로
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