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Function: driver

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Function: _error_handler

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Function: model

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Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 샤워해야지[조합]
우럭 2020.06.18 09:26 조회 965
문제 푼 사람 1명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

연우는 샤워를 하려고 한다.

샴푸는 대형 3가지, 소형 2가지가 있고,

바디 워셔는 대형 1가지, 소형 1가지가 있다.

소형은 2번 써야 씻기고, 대형은 1번 써야 씻길 때,

씻는 방법의 가짓수는?

이 문제 어떠셨나요?

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  •  
    원파 Lv.9 2020.06.18 09:43

    소형을 a,b라고 하면 a, b를 각각 한번씩 써도 씻긴다고 따져야 하는 것인가요?

    댓글 작성하기 좋아요0 댓글수1
    •  
      우럭 Lv.9 2020.06.18 09:46

      넹

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    해결
    파이파이 Lv.9 2020.06.18 16:00 비밀댓글
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    다시 도전
    문제은행 Lv.5 2020.06.19 20:06 비밀댓글
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    다시 도전
    원파 Lv.9 2021.01.07 09:00 비밀댓글
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