수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 제목 추천 받습니다^^

† J.H † 2020.03.27 21:10 조회 532

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

1000원짜리 3000개와 5000원짜리 4000개, 10000원짜리 2600개가 있다. 근데 이것들의 반을 주식에 투자했는데 연간 2%의 이익을 얻고 있다.

문제 1. 이익은?

문제 2. 투자를 10년동안 계속하다가 다시 다른 곳에 투자했는데 연간 -10%의 이익이 들어왔는데 그걸 모르고 6년동안 했다면 남은 돈은?

(식 도)

이전글 제목 추천 받습니다^^

다음글 12위!!!

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