RE: [quiz 45] 다리건너기

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[quiz 45] 다리건너기

in kr-quiz •  7 years ago 

17분입니다. 1,2분 걸리는인원을 먼저보내고(총2분소요), 1분이 돌아온 뒤(총 3분소요) 5,10분짜리를 보내고(총 13분 소요) 2분을 다시 오게(총 15분 소요)해서 1,2분이 다리를 건너면 17분이 됩니다.

kr-quiz
7 years ago by

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      ·  7 years ago 

    그렇습니다!

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