Exercise

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Exercise

by varenya279 » Wed Jan 30, 2013 10:22 am
My Doubt is related to following two questions

1st Question:
Eating beets significantly lowers the risk of cancer, according to an article in a nutritional magazine. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with the disease as people who did not.
Which of the following, if true, most weakens the argument in the magazine article?
A)Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not.
B)Participants in the study reported consuming no vegetables other than beets.
C)The study was only conducted in one city.
D)In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.
E)The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.

OA: E


2nd Question
Many insist that fat people can become thin if only they put their minds to it and follow a strict diet regimen.

Which of the following, if true, would most strongly weaken the contention in the above statement?

A]Studies of twins and of adopted children show that inheritance accounts for as much as 70 percent of weight variance.
B]Dieting when undertaken with regular exercise reduces body weight significantly.
C]People who try to conform to a strict diet, abandon their efforts midway.
D]Researches thus far have not been able to establish beyond doubt, the usefulness of diet in controlling obesity

OA: A

In 2nd question B is discarded because it talks about dieting and exercise. While in 1st question option E is selected which talks abt beet eating+ exercise. M really confused..why different approach is considered in both cases?
Source: — Critical Reasoning |

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by Sam_hellboy » Thu Jan 31, 2013 1:02 am
1st Question:

Conclusion - Eating beets significantly lowers the risk of cancer
Assumption - There is no other factor which lowers the rick of cancer

A - incorrect - Our focus is on the beets. We are least bother about other studies involving seed oil. So OFS
B - Incorrect - This actually strengthens
C - Incorrect - not affecting the conclusion
D - Incorrect . This statement is actually the inverse statement which need not be true
E - Correct - Alright - so we can say that exercise can be the factors which lower the risk of cancer. This show there is a different cause exists. So eating beets is not the only reason. Weakens the conclusion

2nd Question
Many insist that fat people can become thin if only they put their minds to it and follow a strict diet regimen.

Which of the following, if true, would most strongly weaken the contention in the above statement?

A]Studies of twins and of adopted children show that inheritance accounts for as much as 70 percent of weight variance.
B]Dieting when undertaken with regular exercise reduces body weight significantly.
C]People who try to conform to a strict diet, abandon their efforts midway.
D]Researches thus far have not been able to establish beyond doubt, the usefulness of diet in controlling obesity

2nd Question

Conclusion - Many insist that fat people can become thin if only they put their minds to it and follow a strict diet regimen

Assumption - Strong mindset and a strict diet regimen is the ONLY way for the fat people to become thin

Goal - We need to look for some other ways which can make the fat people lose weight an prove that Strong mindset and a strict diet regimen is NOT THE ONLY way for the fat people to become thin

Options -
A- Correct - shows there is another reason for which the body weight is varied.
B- Incorrect - Does not weaken. It has Diet part in the option. Hence wrong
C- Incorrect - kind of strengthening. Says strict mindset is essential to become thin
D- Incorrect - OFS

Hope this helps. Expert's advice is appreciated.

Thanks,
Sam