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[창의 퍼즐] [조합] 올림피아드 기출변형
Mata 2021.03.19 09:43 조회 468
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

어느 해 수학올림피아드에 다음과 같은 문제가 나왔다고 한다.*

주사위를 6회 던졌을 때, 그때까지 나왔던 주사위 눈의 총합이 6이 되는 순간이 나올 확률을 구하시오.

그러나 이 문제는 중학교에서 배운 개념만으로 풀 수 있는 비교적 쉬운 문제라고 할 수 있다. 그래서 다음과 같이 문제 변형을 해 보았다.

주사위를 6회 던졌을 때, 그때까지 나왔던 주사위 눈에서 합이 6이 되는 구간이 존재할 확률을 구하시오.

 

 

해결 딱지는 변형 문제를 푸신 분께 드리도록 하겠습니다.

 

*일본의 수학자 아키야마 진이 어느 퀴즈쇼에서 했던 말. 국제수학올림피아드인지 일본수학올림피아드인지는 확인되지 않았다.

 

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    룰루랄라룰루랄라 Lv.2 2021.03.21 20:32 비밀댓글

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