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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] [확률]대포로부터 살아남자
<로미오와 줄리엣이 첫눈에 반한 확률은?> 책에서 따오고 편집하는 문제
1. 일칠 왕국, 칠일 왕국, 삼일칠 왕국은 전쟁을 하고 있다.
세 나라는 1908년 동안 싸워서(?) 대포로 나라를 아예 박살을 내려고 한다.
일칠 왕국의 대포의 명줄률은 100%, 칠일 왕국 대포의 명중률은 70%, 삼일칠 왕국 대포의 명중률은 30%다.
만약 동시에 대포를 쏜다면, 살아남을 확률이 가장 높은 왕국은 어디겠는가?
단, 대포는 단 두 발만 쏠 수 있고, 1라운드에서 일칠 왕국은 칠일 왕국을, 삼일칠 왕국과 칠일 왕국은 일칠 왕국을 공격한다.
2. 이때, 1번과 같은 조건에서 일칠 왕국이 삼일칠 왕국보다 살아남을 확률이 더 높아지려면 삼일칠 왕국의 명중률은 몇% 이하가 되야 하는가?
3. 1번 문제의 조건에서 1라운드에서 일칠 왕국이 삼일칠 왕국을, 삼일칠 왕국이 칠일 왕국을, 칠일 왕국이 일칠 왕국을 쏘면 살아남을 확률은 어떻게 달라지는가?
풀이 필수고, 문제에 오류가 있으면 알려주세요!
지금 바로
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