The number of North American children who are obese-that is, : GMAT Critical Reasoning (CR)
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The number of North American children who are obese-that is,

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The number of North American children who are obese-that is, [#permalink]

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New post 01 Jun 2007, 23:14
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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 majors 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 in North American children tends to increase as the children grow older

Please explain ur answers...
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Re: CR-North American children [#permalink]

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New post 02 Jun 2007, 09:53
vineetgupta wrote:
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 majors 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 in North American children tends to increase as the children grow older

Please explain ur answers...


Per definition of obese in the argument,

Number of obese = 0.15 * Population

So, if 0.15*P increases, then 0.85*P (the number of non-obese children) must also increase.

Thus C is correct.
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New post 02 Jun 2007, 13:19
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Re: CR-North American children [#permalink]

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New post 03 Jun 2007, 02:14
ncprasad wrote:
vineetgupta wrote:
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 majors 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 in North American children tends to increase as the children grow older

Please explain ur answers...


Per definition of obese in the argument,

Number of obese = 0.15 * Population

So, if 0.15*P increases, then 0.85*P (the number of non-obese children) must also increase.

Thus C is correct.


The OA is C.
whats wrong with D??
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Re: The number of North American children who are obese-that is, [#permalink]

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New post 07 Jun 2016, 22:46
vineetgupta wrote:
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 majors 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 in North American children tends to increase as the children grow older

Please explain ur answers...



From the argument :

Definition of obesity : bf> 85% of NA kids. So 85% people always need to have bodyfat less than whatever is the current obesity level.


85% = no. of non obese/ (no. of obese + no. of non obese)

So if no. of obese is increasing, to keep the 85% constant. no. of non obese has to increase as well. Else there will be a drop in 85%.

Clearly C
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Re: The number of North American children who are obese-that is,   [#permalink] 07 Jun 2016, 22:46
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