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Function: require_once

수학동아 - 폴리매스
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[창의 퍼즐] 배스킨라빈스!
△π 2020.04.01 16:18 조회 436
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

(1)배스킨라빈스에서 중복을 허락하여 하프갤런 아이스크림을 고르는 가짓수는 몇개인가?(단, 하프갤런은 6가지의 아이스크림을 고를 수 있다.)

(2)철수는 배스킨라빈스에 가서 중복을 허락하여 하프갤런 아이스크림을 고른 후 집에 돌아와서 맛 별로 따로 통에 담았다.(굳이?) 그러고는 냉장고에 넣는 것을 잊은 채 학원에 갔다 왔다.(미쳤구나?) 그랬더니 아이스크림 2개가 녹아있었다. 녹은 아이스크림에 슈팅스타가 포함 되어있을 확률을 구하여라.(단, 하나의 아이스크림이 녹을 확률은 1/2이다.)

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