If the average (arithmetic mean) of six numbers is 75, how : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 23 Jan 2017, 17:35

### 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

# If the average (arithmetic mean) of six numbers is 75, how

Author Message
Director
Joined: 26 Sep 2005
Posts: 576
Location: Munich,Germany
Followers: 1

Kudos [?]: 18 [0], given: 0

If the average (arithmetic mean) of six numbers is 75, how [#permalink]

### Show Tags

27 Jan 2006, 00:49
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:29) correct 0% (00:00) wrong based on 23 sessions

### HideShow timer Statistics

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

If the average (arithmetic mean) of six numbers is 75, how many of the numbers are equal to 75 ?
(1) None of the six numbers is less than 75.
(2) None of the six numbers is greater than 75

whats the best way to select numbers here ?
CEO
Joined: 20 Nov 2005
Posts: 2911
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 24

Kudos [?]: 273 [0], given: 0

### Show Tags

27 Jan 2006, 01:28
I think D.

Say all number are (75+a, 75+b, 75+c, 75+d, 75+e, 75+f)

St1: This means a+b+c+d+e+f = 0 where all of them are greater than equal to zero. Only possible when all are zero. So all six number should be 75. SUFF

St2: This means a+b+c+d+e+f = 0 where all of them are less than equal to zero. Only possible when all are zero. So all six number should be 75. SUFF
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Manager
Joined: 04 Jan 2006
Posts: 51
Followers: 1

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

### Show Tags

27 Jan 2006, 02:03
PS_Dahiya. You rock man. What do you eat?
Director
Joined: 26 Sep 2005
Posts: 576
Location: Munich,Germany
Followers: 1

Kudos [?]: 18 [0], given: 0

### Show Tags

27 Jan 2006, 02:17
OA is D. congrats dahiya.
VP
Joined: 20 Sep 2005
Posts: 1021
Followers: 3

Kudos [?]: 35 [0], given: 0

### Show Tags

27 Jan 2006, 11:36
D.

I. If none of the numbers is less than 75, none of the numbers can be greater than 75 to counter balance the additional value...SUFF.

II. Converse of I...SUFF.
SVP
Joined: 16 Oct 2003
Posts: 1810
Followers: 4

Kudos [?]: 137 [0], given: 0

### Show Tags

27 Jan 2006, 19:03
I think ps drinks Lassi which is a yogurt smoothy? Mast glass bhar ke roj subeh aur shaam gatagat
CEO
Joined: 20 Nov 2005
Posts: 2911
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 24

Kudos [?]: 273 [0], given: 0

### Show Tags

28 Jan 2006, 00:13
Bhai wrote:
I think ps drinks Lassi which is a yogurt smoothy? Mast glass bhar ke roj subeh aur shaam gatagat

Bhai, sahi jawab...... lock kar dijiye.....
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

28 Jan 2006, 00:13
Display posts from previous: Sort by