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Function: get_footer

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Function: require_once

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[창의 퍼즐] 배와 강물[평균속력 구하기]난이도:OOOO,노가다 30%
khr519 2020.07.08 06:34 조회 676
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

2시간 30분에 3km를 이동하는 강물이 있다

배 한대가 서로 x km 떨어진 항구A와 B를 한번 왕복했다. 

배는 3시간 24분동안 68km를 이동한다면 이 배가 A와 B를 왕복할 때의 평균속력을 구하라

(단 배와 강물의 속력은 일정하다)

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