수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] [정수] 확률문제 줄이려면?

infinitepi 2020.07.14 17:59 조회 600

문제 푼 사람 1명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

나는 지금까지 175문제를 올렸는데, 25문제의 확률문제를 더 올리면 나는 확률이 50%, 규칙이 20%, 경우의수가 15%, 추리가 10%, 기타가 5%로 내게 된다.

그러면 지금부터 25문제를 더 올리는데, 확률문제의 비율을 40% 이하로 줄이려면 25문제 중 확률문제를 몇 문제 이하로 내야 할까?

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다음글 [추리] 거짓말쟁이 아빠

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파이파이 Lv.9 2020.07.14 23:57 비밀댓글

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