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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 휠릭시스의 모험3:판매?경매?밀거래?
K→C≡N
2019.11.02 18:21
조회 452
협박은 위험부담이 크다는 것을 알아차린 휠릭시스는
결국 팔아서 돈을 얻기로 하였다.
이때, 빠르게 정보를 입수하고 거래에 나선 중고서적 가게주인이 왔다.
가게주인:"책을 나한테 넘겨~그럼 내가 50000원을 줄게~"
휠릭시스는 이게 괜찮은 금액인지 보려고 인터넷에 정가를 찾아보았다.
찾아보니, 책 7권의 정가은 각각 12000원, 6000원, 8500원, 3500원, 13000원, 17000원, 10000원이었다.
중고로 팔면 어떨까 싶어 보니,
중고가는 정가의 80%이고, 중고로 팔면 10%의 확률로 신고당하여 신고당하면, 벌금 50000원을 내야한다.
그리고 경매를 하면 20000원~100000원 중 무작위로 돈을 받는다.(확률은 모두 같음.)
가게주인한테 팔까?중고로 팔까? 경매를 할까?
-
21세기오일러
Lv.11
2019.11.02 18:56
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