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Ten years ago, the death rate from Neural Synapse Deficiency

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Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 20 Jul 2012, 21:13
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Ten years ago, the death rate from Neural Synapse Deficiency – related causes was 5% of all persons infected with the dreaded anti-synapse virus that causes it. Today, the corresponding figure has risen to more than 15%. This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially.

Which of the following, if true, most substantially strengthens the argument above?
A. Anti-synapse virus screening and detection methods have been dramatically improved over the past decade.
B. The number of anti-synapse virus infected persons has increased tenfold over the past ten years.
C. The number of persons who are willing to submit the anti-synapse virus screening has increased significantly over the past ten years.
D. The number of recognized Neural Synapse Deficiency related causes of death has remained relatively constant over the past ten years.
E. New drugs have been developed over the past ten years that significantly lessen the debilitating effects of the Neural Synapse Deficiency virus.

That’s a typical example of the “3+2” rule for the “strengthen” question, exemplifying the elimination of a wrong answer that "slightly strengthens, but not enough." “Will there be four answers do not strengthen the argument, and exactly one that does”?
[Reveal] Spoiler: OA

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 21 Jul 2012, 04:54

Last edited by carcass on 21 Jul 2012, 09:46, edited 1 time in total.

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 21 Jul 2012, 06:31
Which of the following, if true, most substantially strengthens the argument above?
A. Anti-synapse virus screening and detection methods have been dramatically improved over the past decade.
weakening;incorrect
B. The number of anti-synapse virus infected persons has increased tenfold over the past ten years.
no. of infected persons has increased causing more death percentage reveals that the virus is proliferating drastically;strengthen
C. The number of persons who are willing to submit the anti-synapse virus screening has increased significantly over the past ten years.
usually the willingness of telling the disease develops when the disease becomes lethal, though this AC is not correct, this can be considered as inference.
D. The number of recognized Neural Synapse Deficiency related causes of death has remained relatively constant over the past ten years.
weakening
E. New drugs have been developed over the past ten years that significantly lessen the debilitating effects of the Neural Synapse Deficiency virus.
weakening

IMO (B)
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 20 Jul 2014, 08:30
Hello from the GMAT Club VerbalBot!

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 07 Aug 2015, 22:29
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 09 Aug 2015, 06:11
A:the number might have been same: before it was not detected. now with better tech detection is there.
B: number has increased therefore the disease has increased.
C:willing to submit: number is same: before no submit. Today submit. increase is because there is submission.
D:COD is cocnstant. but no info abt propagation: may have increased. may have decreased . or may be constant. (if there was no Option B. Then this is what i would have picked.)
E:Effects have been reduced:AC is irrelevant as number of cases is important

I was initially picking A: But then i thgt this might be saying the cases have not changed i.e. number is fixed. so changed my reasoning. and got B. took me some 40 -45 sec extra.

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 11 Aug 2015, 05:14
Hi everyone,

Here option C is incorrect because the increase in the screening of the virus do not necessarily strengthen the conclusion that the disease has propagated.It could be possible that people who are wiling to attend the screening are not infected by the anti-synapse virus at all.Their willingness for screening cannot be misconstrued here.

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Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 04 Jun 2017, 01:18
why D is wrong? :roll:
In B it might be possible that total no of people also increased.so the overall figure will be approx. same(5%)

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Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 01 Sep 2017, 09:41
jishann wrote:
why D is wrong? :roll:
In B it might be possible that total no of people also increased.so the overall figure will be approx. same(5%)


Hi Jishann,

Ten years ago, the death rate from Neural Synapse Deficiency – related causes was 5% of all persons infected with the dreaded anti-synapse virus that causes it. Today, the corresponding figure has risen to more than 15%. This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially. -- Conclusion is in blue. We need to strengthen that the number of cases are going up.

Which of the following, if true, most substantially strengthens the argument above?

A. Anti-synapse virus screening and detection methods have been dramatically improved over the past decade.
B. The number of anti-synapse virus infected persons has increased tenfold over the past ten years. -- Cases are going up; The virus has infected more people over the years
C. The number of persons who are willing to submit the anti-synapse virus screening has increased significantly over the past ten years.
D. The number of recognized Neural Synapse Deficiency related causes of death has remained relatively constant over the past ten years. -- This talks about the rate of death and not the about the conclusion
E. New drugs have been developed over the past ten years that significantly lessen the debilitating effects of the Neural Synapse Deficiency virus.

Does this help?
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 02 Sep 2017, 10:40
I feel D is the correct answer.Why D is incorrect over B?
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 17 Sep 2017, 03:42
nkmungila wrote:
I feel D is the correct answer.Why D is incorrect over B?


In D, "the number of... causes of death"(constant) does not have anything to do with "the rate of propagation and the malignancy of the virus" (increased) --> Because it does not increase or reduce the number of affected cases.

The conclusion: "This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially."
--> D is irrelevant

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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 17 Sep 2017, 04:39
nkmungila wrote:
I feel D is the correct answer.Why D is incorrect over B?


Hi @nkmunglia,

Please see my post above. I think it'll help!

Posted from my mobile device
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 17 Sep 2017, 07:52
gjg wrote:
Ten years ago, the death rate from Neural Synapse Deficiency – related causes was 5% of all persons infected with the dreaded anti-synapse virus that causes it. Today, the corresponding figure has risen to more than 15%. This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially.

Which of the following, if true, most substantially strengthens the argument above?


A. Anti-synapse virus screening and detection methods have been dramatically improved over the past decade.
This choice antually weakens the argument. If screening and detection methods have been improved, the increasing figure is due to improved detection system, not by the increasing rate of propagation and the malignancy of the virus

B. The number of anti-synapse virus infected persons has increased tenfold over the past ten years.
Correct. We could use negative technique.

If we negative this choice, then the number of anti-synapse virus infected persons has decreased. Hence, a figure of 15% at the present is actually lower than a figure of 5% in the past. The argument is destroyed.


C. The number of persons who are willing to submit the anti-synapse virus screening has increased significantly over the past ten years.
Same as A. This choice weakens the argument.

D. The number of recognized Neural Synapse Deficiency related causes of death has remained relatively constant over the past ten years.
This choice states about the number of death so this choice is irrelevant to the argument.

E. New drugs have been developed over the past ten years that significantly lessen the debilitating effects of the Neural Synapse Deficiency virus.
Same as A, this choice weakens the argument.
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 17 Sep 2017, 11:27
Ten years ago, the death rate from Neural Synapse Deficiency – related causes was 5% of all persons infected with the dreaded anti-synapse virus that causes it. Today, the corresponding figure has risen to more than 15%. This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially.

Which of the following, if true, most substantially strengthens the argument above?
A. Anti-synapse virus screening and detection methods have been dramatically improved over the past decade. -This weakens the argument. If the technology has improved, then the number of deaths should have also reduced.
B. The number of anti-synapse virus infected persons has increased tenfold over the past ten years. -Correct. If the number of infected people has increased, then it strengthens the argument that the rate of propagation and the malignancy of the virus has increased substantially.
C. The number of persons who are willing to submit the anti-synapse virus screening has increased significantly over the past ten years. -This weakens the argument. If the people are willing to support the doctors, then the cure must have been developed.
D. The number of recognized Neural Synapse Deficiency related causes of death has remained relatively constant over the past ten years. -This weakens the argument. If the number of deaths remained constant, then with the increase in # of infected people the percentage should have reduced.
E. New drugs have been developed over the past ten years that significantly lessen the debilitating effects of the Neural Synapse Deficiency virus. -This weakens the argument. If vaccine is available then the deaths must have reduced.
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Re: Ten years ago, the death rate from Neural Synapse Deficiency [#permalink]

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New post 08 Oct 2017, 08:34
Hi all,

I see this question as a quants problem.

I think the argument is arriving at the conclusion based on the 15% percent number.

Basically ratio is (no of deaths/no of infected)

ten years ago, the ratio , no of deaths/no of infected = 5/100,
ratio now, no of deaths/no of infected = 15/100.

The argument can be strengthened, if no of deaths now > no of deaths 10 years ago, merely show higher ratio does not strengthen the conclusion.

We need to show the actual no of deaths is higher.

Choice B gives, the no of infected increased ten fold.

say no of infected ten years ago is 100, then no of deaths is 5 (5%)
now by choice B, no of infected is ten fold, so 1000, by ratio 15%, number of deaths (15/100)*1000 = 150, which is definitely greater than no of deaths 10 years which is 5. So this strengthens the conclusion " the rate of propagation and the malignancy of the virus has increased substantially. "

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Re: Ten years ago, the death rate from Neural Synapse Deficiency   [#permalink] 08 Oct 2017, 08:34
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