It is currently 20 Sep 2017, 04:26

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

A certain library assesses fines for overdue books as follows. On the

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Intern
Intern
avatar
Joined: 08 Feb 2008
Posts: 22

Kudos [?]: 28 [0], given: 4

A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 28 Feb 2010, 11:21
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

64% (00:53) correct 36% (01:04) wrong based on 58 sessions

HideShow timer Statistics

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 the lesser amount. What is the total 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

[Reveal] Spoiler:
as per my calculation the answer should be $0.90 but the answer is actually $0.70...please explain

here is my reasoning:

Day 1 $0.10
Day 2 $0.20 ( doubled since its lesser that $0.30)
Day 3 $0.30 (since the double would be $0.40>$0.30)
Day 4 $0.30 (since the double would be $0.60>$0.30)
Total $0.90



OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/a-certain-li ... 92821.html
[Reveal] Spoiler: OA

Kudos [?]: 28 [0], given: 4

1 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 25 Jun 2009
Posts: 298

Kudos [?]: 143 [1], given: 6

Re: A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 28 Feb 2010, 11:32
1
This post received
KUDOS
divanshuj wrote:
This is frustrating me

A certain library assess fines for overdue books as follow. On the fist day that a book is overdue, the total fine is $0.10. For each additional day that 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 its overdue?

a) $0.60
b) $0.70
c) $0.80
d) $0.90
e) $1.00

as per my calculation the answer should be $0.90 but the answer is actually $0.70...please explain

here is my reasoning:

Day 1 $0.10
Day 2 $0.20 ( doubled since its lesser that $0.30)
Day 3 $0.30 (since the double would be $0.40>$0.30)
Day 4 $0.30 (since the double would be $0.60>$0.30)
Total $0.90


Day 1 fine = 0.10
Day 2 Fine = 0.20 ( in total) As we doubled it
Day 3 Fine = 0.40 ( Doubled it because after doubling the fine is 0.40 < 0.50 ( .2 + .3)
Day 4 fine = 0.40 + 0.30 = 0.70 ( increased by 0.30)

PS: its asking for the total fine on the 4th day ..!

Hope that helps ..!

Kudos [?]: 143 [1], given: 6

1 KUDOS received
Intern
Intern
avatar
Joined: 22 Nov 2009
Posts: 31

Kudos [?]: 24 [1], given: 1

Re: A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 01 Mar 2010, 08:34
1
This post received
KUDOS
divanshuj wrote:
This is frustrating me

A certain library assess fines for overdue books as follow. On the fist day that a book is overdue, the total fine is $0.10. For each additional day that 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 its overdue?

a) $0.60
b) $0.70
c) $0.80
d) $0.90
e) $1.00


C

1st day: 0.1
2nd day: lesser(0.4,0.2) = 0.2
3rd day: lesser(0.5,0.4) = 0.4
4th day: lesser(0.7,0.8) = 0.7
_________________

kudos +1 ?

Kudos [?]: 24 [1], given: 1

Intern
Intern
avatar
Joined: 22 Nov 2009
Posts: 31

Kudos [?]: 24 [0], given: 1

Re: A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 01 Mar 2010, 08:36
divanshuj wrote:
here is my reasoning:

Day 1 $0.10
Day 2 $0.20 ( doubled since its lesser that $0.30)
Day 3 $0.30 (since the double would be $0.40>$0.30)
Day 4 $0.30 (since the double would be $0.60>$0.30)Total $0.90


You have to compare b/n adding 0.3 cents to previous day and doubling:
Here is where you are wrong
Day 3 $0.40 (since the double would be $0.40<$0.50)
_________________

kudos +1 ?

Kudos [?]: 24 [0], given: 1

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 17563

Kudos [?]: 270 [0], given: 0

Premium Member
Re: A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 26 Aug 2017, 05:39
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Kudos [?]: 270 [0], given: 0

Expert Post
1 KUDOS received
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 41631

Kudos [?]: 124106 [1], given: 12071

Re: A certain library assesses fines for overdue books as follows. On the [#permalink]

Show Tags

New post 26 Aug 2017, 05:49
1
This post received
KUDOS
Expert's post
1
This post was
BOOKMARKED
divanshuj wrote:
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 the lesser amount. What is the total 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

[Reveal] Spoiler:
as per my calculation the answer should be $0.90 but the answer is actually $0.70...please explain

here is my reasoning:

Day 1 $0.10
Day 2 $0.20 ( doubled since its lesser that $0.30)
Day 3 $0.30 (since the double would be $0.40>$0.30)
Day 4 $0.30 (since the double would be $0.60>$0.30)
Total $0.90


Notice that, fines are already cumulative: "For each additional day that the book is overdue, the total fine is ..."

1st day fine - 0.1
2nd day fine - 0.1*2 = 0.2 (as doubling gives lower value)
3rd day fine - 0.2*2 = 0.4 (as doubling gives lower value)
4th day fine - 0.4 + 0.3 = 0.7 (as doubling gives higher value we add 0.3 this time)

Answer: B.

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/a-certain-li ... 92821.html
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Kudos [?]: 124106 [1], given: 12071

Re: A certain library assesses fines for overdue books as follows. On the   [#permalink] 26 Aug 2017, 05:49
    Similar topics Author Replies Last post
Similar
Topics:
4 EXPERTS_POSTS_IN_THIS_TOPIC A particular library has 75 books in a special collection tejhpamarthi 4 16 Jun 2014, 04:14
18 EXPERTS_POSTS_IN_THIS_TOPIC If a librarian randomly removes science books from a library bibha 9 23 Oct 2016, 23:21
5 EXPERTS_POSTS_IN_THIS_TOPIC There 3 kinds of books in the library physics, chemistry and kp1811 6 24 Oct 2016, 06:39
27 EXPERTS_POSTS_IN_THIS_TOPIC Maths, Physics and chemistry books are stored on a library alimad 14 03 Dec 2016, 05:02
111 EXPERTS_POSTS_IN_THIS_TOPIC A certain library assesses fines for overdue books as follow sandranjeim 26 03 Jul 2017, 19:40
Display posts from previous: Sort by

A certain library assesses fines for overdue books as follows. On the

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.