It is currently 24 Jun 2017, 19:40

### 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

# PS - GMATPrep - Mean. Median

Author Message
Manager
Joined: 28 Dec 2006
Posts: 61
PS - GMATPrep - Mean. Median [#permalink]

### Show Tags

28 Apr 2007, 18:03
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.

Could anyone please explain how to solve this ?
Attachments

GMATPrep3.JPG [ 46.71 KiB | Viewed 492 times ]

Current Student
Joined: 22 Apr 2007
Posts: 1097

### Show Tags

28 Apr 2007, 20:48
1 - If no home was sold for more than 165, then the maximum high-costing homes can do to increase the average is to cost 165 (All 7 of them)

Maximum the low-costing homes can do to not decrease the average a lot is to cost 130 (All 8 of them)

Avg = 146...

So, at least one home HAS to be sold for more than 165. So, 1 must be true

2 - This is not necessary. Homes can be sold for more than (or equal to) 150 and less than (or equal to) 130 to get to 150 as Avg and 130 as median.

3 - This is also not necessary. All 8 low-costing homes might be sold for 130 exactly to get 130 as the median. The high-costing homes can still get the Avg reach 150.

So, only I is true
28 Apr 2007, 20:48
Display posts from previous: Sort by