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Function: get_footer

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Function: require_once

수학동아 - 폴리매스
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[창의 퍼즐] 책과 책장
Mata 2020.02.19 18:48 조회 537
문제 푼 사람 2명
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

책장에 만화책을 꽂으려고 합니다

먼저 파란색 책장에 1권부터 꽂기 시작하는데, 파란색 책장에 다 꽂고도 책이 남아 같은 크기의 노란색 책꽂이를 가져왔는데, 다행이 남은 책들이 다 들어갔습니다.

그렇다면 이때 파란색 책장의 책에 쓰여있는 권수의 합이 노란색 책장에 쓰여있는 권수의 합과 같다면 책은 총 몇 권일까요?

2020.07.03. 추가) 이 문제의 정답을 구하고 왜 그렇게 나왔는지도 설명해보세요

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