[計量] PP1 PS149題
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)
個人思路: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..
謝謝
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06/21 22:12, , 1F
06/21 22:12, 1F
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