수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 도배

초코파이(π) 2020.04.22 21:28 조회 821

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

초코파이는 문제 8개를 내서 도배를 하려고 한다.

도배를 내기 위해 초코파이는 문제 12개를 준비해 왔다.

1) 문제 8개를 고르는 가짓수는?

문제를 한번 낼때마다 50초가 소요된다.

20초마다 문제 한개가 올라올 확률이 5%라면

도배를 성공적으로 마칠 확률은?

이전글 ㅁㅈ

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