It is currently 17 Nov 2017, 20:06

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

Students in five sections, F, G, H, J and K, of an

Author Message
TAGS:

Hide Tags

Manager
Joined: 14 Mar 2007
Posts: 233

Kudos [?]: 9 [0], given: 0

Students in five sections, F, G, H, J and K, of an [#permalink]

Show Tags

23 Apr 2007, 10:09
00:00

Difficulty:

(N/A)

Question Stats:

35% (01:51) correct 65% (00:32) wrong based on 38 sessions

HideShow timer Statistics

Students in five sections, F, G, H, J and K, of an introductory accounting course were
given a final exam. What is the average test score on all the students in the five
sections ?

(1) The average of the final exam scores of students in sections F, G, and H was 72.
(2) The average of the final exam scores of students in sections J and K was 78.

Kudos [?]: 9 [0], given: 0

Senior Manager
Joined: 01 Jan 2007
Posts: 320

Kudos [?]: 25 [0], given: 0

Show Tags

23 Apr 2007, 10:31
andrehaui wrote:
Students in five sections, F, G, H, J and K, of an introductory accounting course were
given a final exam. What is the average test score on all the students in the five
sections ?

(1) The average of the final exam scores of students in sections F, G, and H was 72.
(2) The average of the final exam scores of students in sections J and K was 78.

Satement1->(F+G+H)/3=72
hence F+G+H=216.
We don't have any information about J and K. So insufficient

Statement2->J+K=156. so this statement is also insufficient.

Both the statements to combine is sufficient and hence answere is C.

Javed.

Cheers!

Kudos [?]: 25 [0], given: 0

Director
Joined: 14 Jan 2007
Posts: 775

Kudos [?]: 179 [0], given: 0

Show Tags

23 Apr 2007, 12:02
Students in five sections, F, G, H, J and K, of an introductory accounting course were
given a final exam. What is the average test score on all the students in the five
sections ?

(1) The average of the final exam scores of students in sections F, G, and H was 72.
(2) The average of the final exam scores of students in sections J and K was 78.

Statement1: Total scores of section F,G and H are = 72*3 = 216
No clue for the average score for the all students. So INSUFF

Statement2: Total scores of section J and K are = 78*2 = 156
No clue for the average score for the all students. So INSUFF

Putting them together:
Total scores of the students in all five sections = 216+156=372
The average score of the all students in all sections = total scores od all students/ Total number od students in all sections
Here total number od students in all sections is not known.
So INSUFF

Kudos [?]: 179 [0], given: 0

VP
Joined: 03 Apr 2007
Posts: 1339

Kudos [?]: 859 [0], given: 10

Show Tags

23 Apr 2007, 13:48
andrehaui wrote:
Students in five sections, F, G, H, J and K, of an introductory accounting course were
given a final exam. What is the average test score on all the students in the five
sections ?

(1) The average of the final exam scores of students in sections F, G, and H was 72.
(2) The average of the final exam scores of students in sections J and K was 78.

Answe is E:

avg score = total score/total nos of students.

Since the information for "total score" or "total nos of students" cannot be obtained from the individual statements or after combining them, the given information is not sufficeint and henc eE

Kudos [?]: 859 [0], given: 10

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5032

Kudos [?]: 452 [0], given: 0

Location: Singapore

Show Tags

23 Apr 2007, 19:07
Looking at the statments, we need E. Both lacks the final piece of clue - # of students. No need for more workings.

Kudos [?]: 452 [0], given: 0

Senior Manager
Joined: 01 Jan 2007
Posts: 320

Kudos [?]: 25 [0], given: 0

Show Tags

23 Apr 2007, 21:07
well this question got me at the frist but now the picture is more clear its E.

Javed.

Cheers!

Kudos [?]: 25 [0], given: 0

Intern
Joined: 17 Aug 2010
Posts: 1

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

Show Tags

17 Aug 2010, 01:53
Also looking at the statments, we need E. Both lacks the final piece of clue - # of students. No need for more workings.
_________________

Remixen

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

Manager
Joined: 07 Aug 2010
Posts: 75

Kudos [?]: 19 [0], given: 9

Show Tags

10 Oct 2010, 16:08
BlitzHN wrote:
C

yeah, actually E. no data on num of students.
_________________

Click that thing - Give kudos if u like this

Kudos [?]: 19 [0], given: 9

Re: stats   [#permalink] 10 Oct 2010, 16:08
Display posts from previous: Sort by