作者burgessx ( ╮(╯_╰")╭)
看板GMAT
标题Re: [计量] PP1 PS149题
时间Sat Jun 21 22:18:49 2008
※ 引述《AKgOd (Myth.EmPtY)》之铭言：
: A certain library assesses fines for overdue books as follows. On the first day
: that a book is overdue, the total fine is $0.10. For each additional day that
: the book is overdue, the total fine is either increased by $0.30 or doubled,
: whichever results in lesser amoun. What is the total fine for a book on the
: fourth day it is overdue?
: (A)$0.60
: (B)$0.70
: (C)$0.80
: (D)$0.90
: (E)$1.00
: Ans:(B)
: 个人思路:第四天Fines: 0.1+0.3+0.3+0.3=1.0 or 0.1 x 2 x 2 x 2=0.8
: 取lesser amount 0.8. 但答案是0.7..
: 谢谢
"increased by $0.30 or doubled" 这两者选其一
第一天 0.1
第二天 选择 double = 0.2 (增加0.1 < 0.3)
第三天 选择 doulbe = 0.4 (增加0.2 < 0.3)
第四天 选择 0.3 = 0.7 (double = 0.4 > 0.3)
以上 供你参考
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