OG - CR-- Q57

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OG - CR-- Q57

by saifn » Sat Mar 24, 2012 7:14 am
Hello All,
I had a doubt and would be grateful if you could help me out with this one.

57.
Which of the following most logically completes the argument given below?

People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt. Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries. Such people often do develop high blood pressure when they move to cities and adopt high-salt diets. Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because ..............

(A) genetic factors could account for the lack of increase of blood pressure with age among such people

(B) people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure

(C) it is possible to have a low-salt diet while living in a city in an industrialized country

(D) there are changes in other aspects of diet when such people move to the city

(E) salt is a necessity for human life, and death can occur when the body loses too much salt

[ Ok got it, a well deserved break did the trick .. people who have still not done the OG are free to solve it though and give in their answers]
Source: — Critical Reasoning |

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by sam2304 » Sun Mar 25, 2012 7:01 am
Ppl in rain forest communities -> live on veg diet + less salt. Move to city + high salt diets -> High BP.

Conc: We cannot say salt is responsible for high BP because ________ ?

We need proof that something other than salt is responsible.

A - If its genetic factor then ppl who haven't moved should also get it, but its given as BP doesn't increase with age - so ruled out.
B - its given as ppl living from birth and we are speaking about ppl who moved - Irrelevant
C - This gives us how to avoid it and doesn't help us reason out the problem.
D - Seems to be a fine contender. - This may affect.
E - This fact is irrelevant

IMO D.
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by 6983manish » Sun Mar 25, 2012 10:28 am
IMO D
saifn wrote:Hello All,
I had a doubt and would be grateful if you could help me out with this one.

57.
Which of the following most logically completes the argument given below?

People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt. Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries. Such people often do develop high blood pressure when they move to cities and adopt high-salt diets. Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because ..............

(A) genetic factors could account for the lack of increase of blood pressure with age among such people

(B) people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure

(C) it is possible to have a low-salt diet while living in a city in an industrialized country

(D) there are changes in other aspects of diet when such people move to the city

(E) salt is a necessity for human life, and death can occur when the body loses too much salt

[ Ok got it, a well deserved break did the trick .. people who have still not done the OG are free to solve it though and give in their answers]

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by chris@magoosh » Sun Mar 25, 2012 10:31 am
1. People who live in rainforest and eat a diet low in salt = lower blood pressure than that of city dwellers.

2. When rainforest folk move to cities and eat high-salt their respective blood pressure rises.

Concl: Therefore, salt causes higher blood pressure.


The argument though asks us to counter the conclusion (these facts do not...). So we must find a reason that weakens the link between salt consumption and high pressure. That is could something else in a city diet account for the increase in blood pressure.

(D) is the answer because it points out "other aspects of diet" (besides salt intake) that rainforest people change when moving to the cities. These other factors could account for the rise of high blood pressure and thus exonerate the salt culprit.


(A) genetic factors could account for the lack of increase of blood pressure with age among such people

Could genetic factors really account for the lack of increase in blood pressure? After all, the argument points out that when rainforest people move to a city (change in environment), their blood pressure goes up.

(B) people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure

This link is already pointed out in points 1 and 2 above. The goal is to counter the link between city living (salt intake) and high blood pressure.

(C) it is possible to have a low-salt diet while living in a city in an industrialized country

This does nothing to point out another cause of high blood pressure in city living.

D) there are changes in other aspects of diet when such people move to the city

The Answer.

(E) salt is a necessity for human life, and death can occur when the body loses too much salt

This is nothing more than a fun biology factoid. Does not relate to the argument.

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by sachindia » Fri Sep 14, 2012 6:33 pm
It's a strengthen Qs rite??

manhattan OG archer says its inference Qs.
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by umeshpatil » Sat Sep 15, 2012 8:41 pm
Argument itself says that Salt may not be culprit in high blood pressure. So, Something else would be responsible for high blood pressure,when people move to cities. (D) is correct.

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by sachindia » Sun Sep 16, 2012 12:17 am
What kinda Qs is this?

It's a strengthen Qs rite??

manhattan OG archer says its inference Qs.
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Sach

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by deepen » Sun Sep 16, 2012 2:43 pm
Nice question. The conclusion says that though the facts are suggestive, but don't establish the connection between high salt diet and high blood pressure. Therefore, we need to find out a choice which can attribute to high blood pressure when these ppl move to city. D fits the bill.