Find all School-related info fast with the new School-Specific MBA Forum

It is currently 23 Oct 2014, 03:49

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The number of North American children who are obese, that is

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 24 Aug 2010
Posts: 59
Followers: 0

Kudos [?]: 5 [0], given: 0

The number of North American children who are obese, that is [#permalink] New post 17 Dec 2010, 06:06
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

20% (02:18) correct 80% (00:52) wrong based on 10 sessions
74. The number of North American children who are obese, that is who have more body fat than do 85 percent of North American children their age, is steadily increasing according to four major studies conducted over the past 15 years.
If the finding reported above is correct, it can be properly concluded that
(A) when four major studies all produce similar results those studies must be accurate.
(B) North American children have been progressively less physically active over the past 15 years.
(C) The number of North American children who are not obese increased over the past 15 years.
(D) Over the past 15 years, the number of North American children who are underweight has declined.
(E) The incidence of obesity.
[Reveal] Spoiler: OA
Kaplan GMAT Instructor
User avatar
Joined: 21 Jun 2010
Posts: 148
Location: Toronto
Followers: 35

Kudos [?]: 111 [0], given: 0

Re: need help in CR to sort out doubt ?? [#permalink] New post 17 Dec 2010, 11:41
aimkp wrote:
74. The number of North American children who are obese, that is who have more body fat than do 85 percent of North American children their age, is steadily increasing according to four major studies conducted over the past 15 years.
If the finding reported above is correct, it can be properly concluded that
(A) when four major studies all produce similar results those studies must be accurate.
(B) North American children have been progressively less physically active over the past 15 years.
(C) The number of North American children who are not obese increased over the past 15 years.
(D) Over the past 15 years, the number of North American children who are underweight has declined.
(E) The incidence of obesity.


Hi again!

Another inference question, so the same rules apply - we're looking for a statement that MUST be true based on one or more of the facts in the stimulus.

We start by paraphrasing the stimulus:

Four major studies tell us that the NUMBER (my emphasis) of N.A. children who are obese is steadily increasing. Obesity is defined as children heavier than 85 PERCENT (my emphasis) of their peers.

On most inference questions, it's very difficult to predict the correct answer (since, on the basis of a bunch of facts, there's usually numerous conclusions that can be drawn). Here, however, if we notice the distinction between numbers and percents, we may be able to make a rough prediction.

If obesity is a relative concept (i.e. it's not a fixed weight, it's your weight relative to the weight of others), how can the group comprising that top 15% get bigger? Only if the entire pool of children grows.

So, our prediction: there must be more children now than there were previously.

Going through the choices, (C) should jump out as the clear winner - not an exact match for our prediction, but following the same logic.

A quick look at the other choices:

A) "must be accurate" - too extreme, eliminate.
B) we have no info on the causes of obesity - outside the scope, eliminate.
D) we have no info on how the other 85% of children are distributed (maybe all 85% are underweight) - outside the scope, eliminate.
E) answer choice incomplete.

Remember, the correct answer to an inference question MUST be true; if you read a choice and think "well, this COULD be true, but I'm not sure", then you can confidently eliminate that choice.
_________________

Stuart Kovinsky
stuart.kovinsky@kaplan.com
Kaplan Test Prep & Admissions
Toronto Office
1-800-KAP-TEST
http://www.kaptest.com/GMAT

Prepare with Kaplan and save $150 on a course!

Image

Kaplan Reviews

Re: need help in CR to sort out doubt ??   [#permalink] 17 Dec 2010, 11:41
    Similar topics Author Replies Last post
Similar
Topics:
1 The number of North American children who are obese that is, talk2pk 4 12 Sep 2009, 22:20
1 The number of North American children who are obesethat is, apurva1985 14 16 Jul 2008, 08:21
Experts publish their posts in the topic The number of North American children who are obese that is, az780 4 13 Feb 2008, 14:07
The number of North American children who are obese-that is, vineetgupta 3 01 Jun 2007, 23:14
The number of North American children who are obese-that is, HIMALAYA 9 17 Jun 2005, 21:34
Display posts from previous: Sort by

The number of North American children who are obese, that is

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.