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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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Line: 559
Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
관종이
2020.01.19 08:14
조회 636
일직선의 도로 위에 버섯왕국, 쿠파의 성과 미국이 순서대로 있다.
마리오는 버섯왕국에서 미국까지, 그리고 루이지는 미국에서 쿠파의 성까지 일정한 속력으로 이동하였다.
두 사람이 동시에 출발하자 마리오가 쿠파의 성에 도착했을 때, 루이지는 쿠파의 성까지 8km가 남았다.
또, 루이지가 쿠파의 성에 도착했을 때, 마리오는 미국까지 3km가 남았다.
마리오가 버섯왕국에서 미국까지 가는 데 3시간 40분이 걸렸다면, 마리오는 시속 Akm, 루이지는 시속 Bkm를 걷는다.
A+B=?
지금 바로
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