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수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
PF＿
2021.09.21 17:12
조회 397
*문제를 한 번 날림으로 인해 열받아 스토리모드 건너뛰고 문제로 갑니다.*
수파는 마in크래프트에서 서바이벌을 한다.
해당 y좌표가 조금씩 내려온다.
y좌표는 10초에 1씩 내려가고,
수파는 빨리 땅을 파 더 깊은 곳으로 가야 한다.
땅을 파는데 한 블록 당 흙이 나올 확률은 1/2, 철은 1/4, 금은 1/8, 다이아몬드는 1/16, 에메랄드는 1/32, 아무것도 없을 확률은 1/32다.
땅을 파는데 흙은 1초, 철은 3초, 금은 7초, 다이아몬드는 10초, 에메랄드는 19초가 걸린다. 아무것도 없으면 바로 내려간다.
수파는 현재 y좌표가 100이고, 죽음에 y좌표는 현재 110이다.
수파 키는 3블록(실제로 이렇게 크진 않음) 이어서 y좌표가 103인 셈이다.
죽음에 y좌표가 수파보다 더 작아지면 수파는 즉사한다.
기반암은 안 나온다 할 때, 수파가 죽음에 y좌표를 피해 땅을 뚫어서 죽을 확률(?)은 얼마인가?
(땅은 y좌표 0까지 있다)
*이 문제는 실제 유*부에 있는 영상에서 영감을 얻었습니다.
유*부 검색창에 '죽음의 y좌표 서바이벌'이라 치시면 나옵니다. 광고((퍼퍼퍼퍼퍼퍼퍼퍼퍼퍼ㅓ어엉ㅇ펑펖어펖어퍼퍼펖어퍼퍼
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