It is currently 14 Dec 2017, 20:38

### 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

# On a recent test, Kevin scored m percent higher than the

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

### Hide Tags

Manager
Joined: 14 Dec 2011
Posts: 77

Kudos [?]: 61 [0], given: 77

On a recent test, Kevin scored m percent higher than the [#permalink]

### Show Tags

30 Nov 2012, 21:43
1
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

70% (00:56) correct 30% (00:50) wrong based on 53 sessions

### HideShow timer Statistics

On a recent test, Kevin scored m percent higher than the class average, while Katherine scored n percent higher than the class average. What was the class average?

(1) n – m = 7
(2) m = 12
[Reveal] Spoiler: OA

Last edited by Bunuel on 01 Dec 2012, 05:55, edited 1 time in total.
Renamed the topic.

Kudos [?]: 61 [0], given: 77

VP
Joined: 02 Jul 2012
Posts: 1214

Kudos [?]: 1720 [1], given: 116

Location: India
Concentration: Strategy
GMAT 1: 740 Q49 V42
GPA: 3.8
WE: Engineering (Energy and Utilities)
Re: Question based on average [#permalink]

### Show Tags

30 Nov 2012, 22:05
1
KUDOS
vinnik wrote:
On a recent test, Kevin scored m percent higher than the class average, while Katherine scored n percent higher than the class average. What was the class average?

(1) n – m = 7

(2) m = 12

Thanks & Regards
Vinni

1) We do not get any useful data from this. Obviously insufficient.

2) We do not get any useful data from this. Obviously insufficient.

1 & 2 together. m = 12% and n = 19%. We still do not have any idea about the class average. Insufficient.

I find it hard to explain why 1 & 2 are "obviously" insufficient. If you could tell me how one could think them to be sufficient, I'll try my best to provide an explanation.
_________________

Did you find this post helpful?... Please let me know through the Kudos button.

Thanks To The Almighty - My GMAT Debrief

GMAT Reading Comprehension: 7 Most Common Passage Types

Kudos [?]: 1720 [1], given: 116

Manager
Joined: 14 Dec 2011
Posts: 77

Kudos [?]: 61 [0], given: 77

Re: Question based on average [#permalink]

### Show Tags

01 Dec 2012, 09:08
MacFauz wrote:

1) We do not get any useful data from this. Obviously insufficient.

2) We do not get any useful data from this. Obviously insufficient.

1 & 2 together. m = 12% and n = 19%. We still do not have any idea about the class average. Insufficient.

I find it hard to explain why 1 & 2 are "obviously" insufficient. If you could tell me how one could think them to be sufficient, I'll try my best to provide an explanation.

Thanks MacFauz, i was thinking exactly the same way, but i wasn't confident.

Regards Vinni

Kudos [?]: 61 [0], given: 77

Manager
Joined: 26 Feb 2013
Posts: 170

Kudos [?]: 53 [0], given: 25

Re: Question based on average [#permalink]

### Show Tags

17 Oct 2013, 00:54
MacFauz wrote:
vinnik wrote:
On a recent test, Kevin scored m percent higher than the class average, while Katherine scored n percent higher than the class average. What was the class average?

(1) n – m = 7

(2) m = 12

Thanks & Regards
Vinni

1) We do not get any useful data from this. Obviously insufficient.

2) We do not get any useful data from this. Obviously insufficient.

1 & 2 together. m = 12% and n = 19%. We still do not have any idea about the class average. Insufficient.

I find it hard to explain why 1 & 2 are "obviously" insufficient. If you could tell me how one could think them to be sufficient, I'll try my best to provide an explanation.

We need a starting point (a score) in order to be able to deduce actual numbers from percentages.
It's the classic "given a percentage, find the number" type of question I think. Hence, obviously we can't deduce anything from 1+2.

Kudos [?]: 53 [0], given: 25

Re: Question based on average   [#permalink] 17 Oct 2013, 00:54
Display posts from previous: Sort by

# On a recent test, Kevin scored m percent higher than the

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 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®.