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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
신입 회원들은 놀랍게도 집돌이 페렐만을 따라잡을 계획을 짰다.
언제쯤 계획이 성공할지 봅시다.
1. 페렐만은 바빠서 일주일에 문제를 한 문제만 올린다.
그러나 신입들은 매일매일 문제를 3문제씩 올린다.
자, 페렐만은 71815p, 신입회원들은 각각 0p로 시작할 때 언제쯤 따라잡을 수 있을까?
참고로 로그인은 5p, 문제 출제는 300p, 그 외의 활동은 없으며 포인트를 따라잡는 것만 본다.
2. 페렐만은 오락가락해서 매일 1문제 혹은 2문제 혹은 3문제만 올린다.
그러나 신입들은 매일매일 10문제씩 올린다.
(1)자, 페렐만이 다음주에 따라잡힐 확률은?
(2)페렐만이 따라잡힐 수 있는 가장 빠른 날짜는?
(3)페렐만이 2020년 1월 1일에 따라잡힐 확률은?
-
222
Lv.9
2019.11.19 05:30
-
조곰팅
Lv.5
2019.11.19 05:37
-
ㄱㄴㄷ✅
Lv.6
2019.11.22 07:21
ㅎㅎㅎㅎ 지금부터한번 빠르게 페렐만님 잡으러 가봅시다ㅎㅎ
지금 바로
로그인해보세요
로그인 하면 내가 찜한 문제와 수행 평가를 한곳에서 볼 수 있어요!
