Word Problem II

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carllecat
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Topic: Word Problem II
PostTue Nov 17, 2009 9:21 am
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A certain library assesses fines for overdue boks as follow. 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 the lesser amount. 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

Answer to be posted later.
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carllecat
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PostTue Nov 17, 2009 9:49 am
B) $0.70
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papgust
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PostTue Nov 17, 2009 11:01 pm
First day --> 0.10
Second " --> 0.20 (0.20 if doubled and 0.40 if increased. 0.20 is lesser)
Third " --> 0.40 (0.40 if doubled and 0.50 if increased. 0.40 is lesser)
Fourth " --> 0.70 (0.80 if doubled and 0.70 if increased. 0.70 is lesser)

Hence, 0.70
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carllecat
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PostWed Nov 18, 2009 8:20 am
Thanks papgust!
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