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수학동아 - 폴리매스
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창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 딱지치기
초코파이(π) 2020.04.20 07:43 조회 600
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

초코와 파이가 딱지를 치려고 한다.

딱지별로 붙었을 때 이길 확률이 다음과 같다.

초코는 검정 2개, 빨강 1개 파랑 1개를 갖고 있고

파이는 파랑 2개 빨강 2개를 갖고 있다.

초코가 힘이 세서 항상 이길 확률이 5% 더 높다면

파이가 이길 확률은?

이 문제 어떠셨나요?

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  •  
    은총알 Lv.11 2020.04.20 08:13

    예를 들어 초코의 검정 딱지와 파이의 파랑 딱지가 배틀을 한다면 원래는 초코가 이길 확률이 65%고 파이가 이길 확률이 35%인데, 초코가 이길 확률이 항상 5% 더 높으면 초코가 이길 확률은 70%, 파이가 이길 확률은 30%가 되는 건가요?

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