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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] New post 17 Jun 2005, 21:34
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A
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C
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E

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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


i find this with extreemly hidden information and hence difficult. might be discussed earlier but want to know the best approach.....................
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 [#permalink] New post 18 Jun 2005, 17:51
Hmmmmmmmm........ :shock:
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 [#permalink] New post 18 Jun 2005, 17:59
C.

The obese kids are measured against the non-obese kids. So if the obese kids are increasing then the reference number should also increase.
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 [#permalink] New post 20 Jun 2005, 04:13
Couldn't get the answer :shock:
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 [#permalink] New post 20 Jun 2005, 08:05
My choice is: NO ANSWER!!!
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 [#permalink] New post 20 Jun 2005, 09:46
D for me.
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 [#permalink] New post 21 Jun 2005, 06:19
just looked at this again.
For me, ans is (E).
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 [#permalink] New post 21 Jun 2005, 09:39
I think it is D....

I may be completely wrong... but here is how I saw it

Lets say in 1985
X (No of children who are obese) = 25
Y (No of children who are not obese) = 75

Lets say in 1995
X (No of children who are obese) = 30
Y (No of children who are not obese) = 70

Lets say in 2005
X (No of children who are obese) = 35
Y (No of children who are not obese) = 65

So, if you look at the answer choices

(A) when four majors studies all produce similar results, those studies must be accurate - No relevence

(B) North American children have been progressively less physically active over the past 15 years - Not mentioned. could be other reasons...

(C) the number of North American children who are not obese increased over the past 15 years
- Cant be

(D) over the past 15 years, the number of North American children who are underweight has declined

Look at Y figures in the calculations above

(E) the incidence of obesity in North American children tends to increase as the children grow older

- Then everybody's weight should increase... meaning obesity should remain constant...
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 [#permalink] New post 21 Jun 2005, 16:37
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 [#permalink] New post 21 Jun 2005, 20:38
OA is C.
  [#permalink] 21 Jun 2005, 20:38
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