Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 24 May 2017, 12:55

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# During a 10-week summer vacation, was the average

Author Message
Manager
Joined: 09 Sep 2004
Posts: 54
Followers: 2

Kudos [?]: 145 [0], given: 0

During a 10-week summer vacation, was the average [#permalink]

### Show Tags

09 Sep 2004, 11:52
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

During a 10-week summer vacation, was the average (arithmetic mean) number of books that Carolyn read per week greater than the average number of books that Jacob read per week?
(1) Twice the average number of books that Carolyn read per week was greater than 5 less than twice the average number of books that Jacob read per week.
(2) During the last 5 weeks of the vacation, Carolyn read a total of 3 books more than Jacob.
Director
Joined: 16 Jun 2004
Posts: 892
Followers: 3

Kudos [?]: 63 [0], given: 0

### Show Tags

09 Sep 2004, 12:56
1. Insufficient. If Carolyn had read 5 books and Jacob had read 6 books i a week, we have 10>12-5 which means Jacob read more than Carolyn. However, if Jacob had read 4 books then again 10>8-5. This time Carolyn has read more. So, we dont know.
2. Insufficient. We dont know about the first 5 weeks. Jacob could have read more.

Both combined, still unclear. So, E.

feel like . Cant think at this hour..
Manager
Joined: 01 Nov 2005
Posts: 126
Followers: 1

Kudos [?]: 114 [0], given: 0

### Show Tags

04 Sep 2006, 11:05
I saw this question on my practice test and the OA says A. Can someone help to explain? or my OA is wrong?
Senior Manager
Joined: 19 Jul 2006
Posts: 360
Followers: 2

Kudos [?]: 7 [0], given: 0

### Show Tags

06 Sep 2006, 03:13
A

average number of books that Carolyn read per week = C
average number of books that Jacob read per week= J

question is asking : is C > J

From (1)

2C > 2J - 5 => c > J
Senior Manager
Joined: 14 Jul 2005
Posts: 402
Followers: 1

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

### Show Tags

06 Sep 2006, 11:07
AK wrote:
A

average number of books that Carolyn read per week = C
average number of books that Jacob read per week= J

question is asking : is C > J

From (1)

2C > 2J - 5 => c > J

if c=5, j=7 then c > j -5/2 i.e. 5 > 4.5
CEO
Joined: 20 Nov 2005
Posts: 2898
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 25

Kudos [?]: 289 [0], given: 0

### Show Tags

06 Sep 2006, 11:14
E

Let C - Av books read by Carolyn
J - Av books read by Jacob

We have to find if C-J > 0??

St1: 2C > 2J - 5
C - J > -5/2
C-J could be +ve or -ve. : INSUFF

St2: Clearly INSUFF

Together:
St2 is not helping st1. : INSUFF
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

VP
Joined: 02 Jun 2006
Posts: 1261
Followers: 2

Kudos [?]: 87 [0], given: 0

### Show Tags

06 Sep 2006, 11:35
Q: Cavg > Javg

S1: Cavg > J -2.5
Not sufficient.

S2: Not sufficient.

S1 & S2: Provides no further insight...

06 Sep 2006, 11:35
Display posts from previous: Sort by