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Function: driver
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: get_footer
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [거리+시간] 생활 속 거리두기 2
나는 학교에서 줄을 섰다. 줄을 설 때 앞에는 8명, 뒤에는 12명이 있었다. 줄을 설때 1m 간격을 유지해야 한다.
앞의 친구들 8명은 모두 0.5m의 간격밖에 떨어져 있지 않았다. 이런 나쁜놈들 (퍼퍼퍼퍽)
나는 그걸 눈치채고 앞의 사람과 2.5m의 간격을 유지했다. 뒤의 친구들은 모두 1m 간격을 유지했다.
선생님이 간격 유지하라고 했다.
(1) 나는 몇 미터를 뒤로 더 가야 하는지 구하여라.
(2) 나와 뒤의 친구들은 모두 1m를 0.5초에 이동한다. 뒤의 친구들은 뒤의 친구가 이동하기 시작한지 0.5초 후에 이동하기 시작하고, 내가 뒤로 더 가야 하는 거리만큼 뒤로 이동할때, 맨 뒤의 친구가 이동하기 시작한지 몇 초 후에 내가 이동을 마칠지 구하여라.
(풀이필수, 하나만 풀거나 풀이 안쓰면 부분해결)
지금 바로
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