a career in dermatology is still a safe bet for medical : GMAT Critical Reasoning (CR)
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# a career in dermatology is still a safe bet for medical

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a career in dermatology is still a safe bet for medical [#permalink]

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14 Jul 2008, 21:36
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a career in dermatology is still a safe bet for medical students. In the US., the number of cases of skin cancer linked to UV radiation in sunlight has remained relatively constant every year even though far fewer adults are intentionally exposing themselves to UV sunlight now than were doing so at the height of the suntan craze 20yrs ago

each of the following,if true could explain the relative stability in the incidence of skin cancer each year despite the decrease in intentional exposure to UV sunlight EXCEPT:

a) bcause of decreasing levels of ozone in the upper atmosphere,more people are now exposed accidently to excessive UV sunlight
b) people who continue to intentionally expose themselves to UV sunlight are absorbing larger doses of harmful radiation than the average suntanner did in the past
c) levels of UV radiation from sources other than sunlight are increasing every year
d) while fewer women are intentionally exposing themselves to UV sunlight,the number of men doing so has increased significantly

My doubt:
I guessed 'c' to be the right answer because it attributes an increased incidence of skin cancer to reasons other than sunlight.As the passage doesnt mention about any other cause and only talks about skin cancer related to sunlight it becomes clear that any choice that deviates from the central idea of the passage will be the odd one out. But 'c', is incorrect!

What did i do wrong??
If you have any questions
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15 Jul 2008, 06:38
vinayn wrote:
a career in dermatology is still a safe bet for medical students. In the US., the number of cases of skin cancer linked to UV radiation in sunlight has remained relatively constant every year even though far fewer adults are intentionally exposing themselves to UV sunlight now than were doing so at the height of the suntan craze 20yrs ago

each of the following,if true could explain the relative stability in the incidence of skin cancer each year despite the decrease in intentional exposure to UV sunlight EXCEPT:

a) bcause of decreasing levels of ozone in the upper atmosphere,more people are now exposed accidently to excessive UV sunlight
b) people who continue to intentionally expose themselves to UV sunlight are absorbing larger doses of harmful radiation than the average suntanner did in the past
c) levels of UV radiation from sources other than sunlight are increasing every year
d) while fewer women are intentionally exposing themselves to UV sunlight,the number of men doing so has increased significantly

Where is e) ?

My doubt:
I guessed 'c' to be the right answer because it attributes an increased incidence of skin cancer to reasons other than sunlight.As the passage doesnt mention about any other cause and only talks about skin cancer related to sunlight it becomes clear that any choice that deviates from the central idea of the passage will be the odd one out. But 'c', is incorrect!

What did i do wrong??

I think what you did is you are looking for the wrong thing. You appear to be looking for an "increased incidence of skin cancer" but the stem doesn't say that. The stem actually says " relative stability in the incidence of skin cancer ", not increase. I think the answer is B, but without seeing E, I'm not certain the answer is B.
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15 Jul 2008, 07:30
vinayn wrote:
a career in dermatology is still a safe bet for medical students. In the US., the number of cases of skin cancer linked to UV radiation in sunlight has remained relatively constant every year even though far fewer adults are intentionally exposing themselves to UV sunlight now than were doing so at the height of the suntan craze 20yrs ago

each of the following,if true could explain the relative stability in the incidence of skin cancer each year despite the decrease in intentional exposure to UV sunlight EXCEPT:

a) bcause of decreasing levels of ozone in the upper atmosphere,more people are now exposed accidently to excessive UV sunlight
b) people who continue to intentionally expose themselves to UV sunlight are absorbing larger doses of harmful radiation than the average suntanner did in the past
c) levels of UV radiation from sources other than sunlight are increasing every year
d) while fewer women are intentionally exposing themselves to UV sunlight,the number of men doing so has increased significantly

My doubt:
I guessed 'c' to be the right answer because it attributes an increased incidence of skin cancer to reasons other than sunlight.As the passage doesnt mention about any other cause and only talks about skin cancer related to sunlight it becomes clear that any choice that deviates from the central idea of the passage will be the odd one out. But 'c', is incorrect!

What did i do wrong??

B

The question states -"each of the following,if true could explain the relative stability in the incidence of skin cancer each year despite the decrease in intentional exposure to UV sunlight EXCEPT:"

You need to find an answer choice which does not explain the question below.If you dont get an explantion you have found the answer choice.

even with reduced exposure to UV sunlight,the incidence of cancer is constant.Why?

Below is my reasoning

Premise-nos of people intentionally exposing themselves to UV sunlight has decreased

a) bcause of decreasing levels of ozone in the upper atmosphere,more people are now exposed accidently to excessive UV sunlight
explains.Even though people have reduced their exposure to sunlight they are exposed to other sources and this explains why incidence is stable.
b) people who continue to intentionally expose themselves to UV sunlight are absorbing larger doses of harmful radiation than the average suntanner did in the past
doesnot explain why the incidence of cancer is stable.In this case the incidence should have increased.

c) levels of UV radiation from sources other than sunlight are increasing every year
explains.Even though people have reduced their exposure to sunlight they are exposed to other sources and this explains why incidence is stable.
d) while fewer women are intentionally exposing themselves to UV sunlight,the number of men doing so has increased significantly
explains.while number of women intentionally exposing themselves to UV sunlight has decreased the number of men doing so has increased. Explains why the incidence is stable.
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15 Jul 2008, 07:32
I think E is the answer
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15 Jul 2008, 07:40
gmatnub wrote:
I think E is the answer

So you saying BLANK is an answer??? :D....There isn't an E provided....
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15 Jul 2008, 07:46
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15 Jul 2008, 22:51
concurring with gmatnub, D makes most sense!
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15 Jul 2008, 22:57
IMO A is the correct answer.
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15 Jul 2008, 23:34
B is the one!
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16 Jul 2008, 03:03
I believe the answer is B, since fewer people go to the sun intentionally and people who go to sun intentionally is the same.
Yeah, they get more harmful doses, but the number of people will decrease.
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16 Jul 2008, 08:15
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16 Jul 2008, 16:38
zoltan wrote:
I believe the answer is B, since fewer people go to the sun intentionally and people who go to sun intentionally is the same.
Yeah, they get more harmful doses, but the number of people will decrease.

The key to look for is the word EXCEPT. The choice which doesnt support/strengthen's author's argument will be the answer
choice B infact supports author's argument on why the incidence rate of cancer is still constant even though no of ppl gettting exposed to sunlight has gone down
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17 Jul 2008, 00:06
Dude where is opton E?????
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17 Jul 2008, 15:32
vksunder wrote:
Dude where is opton E?????

E. In most victims,skin cancer is linked to exposures to UV sunlight that occured up to 30yrs before the onset of the disease
Re: CR: EXCEPT   [#permalink] 17 Jul 2008, 15:32
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