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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [규칙] 뭔가 약간 찝찝한 문제
PF＿
2021.02.28 22:55
조회 534
A,B,C라는 사람이 있다.
A와 B가 규칙게임을 하고 있었다.
C가 A와 B의 대화를 들어보니, 대화는 이랬다.
A: 12!
B: 6!
A: 3!
B: 새로 또 하자!
그렇게 놀이를 하는 모습이 재미있어서 C가 하고 싶다고 말했다.
C: 나도 같이 하자!
A: 그럼 넌 B랑 해봐!
B: 시~작!
B: 10!
C: (자신만만) 5!
B: NO!(아니야!)
C는 어리둥절했다.
그럼, 원래 C가 말해야 할 말은?
도움말: 숫자 뒤에 붙은 느낌표는 팩토리얼이 아니다.
B가 거짓말을 하지는 않았다.
단순문제라는 글 3개 이상이면 삭제하겠습니다.
풀이 필수.
정답기준: 알겠지?(내 도나수에 풀이 필수인 문제와 똑같음)
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NO!가 아니라는 뜻인가요?
아님 어떤 규칙 때문에 말한건가요?
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PF＿
Lv.8
2021.03.01 02:26
좋아요0
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PF＿
Lv.8
2021.03.01 03:11
그리고 연속으로 대댓글을 달면 비댓이 안 보여요.
답이 적혀 있는 거라면 그 댓글을 삭제하시고 따로 댓글을 달아주세요.
또, 'NO!가 아니라는 뜻인가요?' 로 시작하는 댓글은 답도 안 적혀 있는데 정답요청이 눌려저 있으니까
앞으로는 답이 있는 댓글만 정답요청을 눌러주세요.
일단은 다시도전 눌렀습니다.
좋아요0
-
-
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PF＿
Lv.8
2021.03.01 19:54
비밀댓글
비밀 댓글이 등록 되었습니다!
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PF＿
Lv.8
2021.03.01 16:37
다시 한다는 말은... 계속 진행하면 문제를 풀고 있는 회원분들께 단순문제라는 생각이 들 것 같아서 쓴겁니다.
혼란드려서
지금 바로
로그인해보세요
로그인 하면 내가 찜한 문제와 수행 평가를 한곳에서 볼 수 있어요!
