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Function: driver

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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Function: initiateCache

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: _error_handler

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: model

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getFloatingMyInfo

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Line: 559
Function: get_footer

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

수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 깁님 오늘도 문제 도배할 것인가요?
† J.H † 2020.03.09 18:05 조회 658
문제 푼 사람 2명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

집 10채가 일렬로 서 있다. 올해는 왼쪽부터 곡식이 100g~1000g까지 각각의 집이 갖고 있다. (그니까 왼쪽 맨 끝 집은 100g, 오른쪽 끝 집은 1000g) 모든 집은 일년에 곡식을 80g씩을 먹는다. 또한 농사로 100g을 매년 얻는다. 그런데 가뭄이 들어 생산량이 50% 줄었다. 4년에 한번씩 가뭄이 든다고 할 때, 10년 뒤 왼쪽 두번째 집이 가지고 있는 곡식이 양은?

(곡식은 썩지 않는다.)

(풀이 필수)

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