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Bunuel
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[quote="Bunuel"]A year after the start an experiment to decrease crime in two high-crime subway stations by the installation of closed-circuit televisions, the experiment is being discontinued, city officials say the program has led to an increase in crime, citing the fact that following the installation, both stations showed increases in the number of crimes reported.

Which of the following, if true, most seriously weakens the claim of the city officials that the program has led to an increase in crime?


(A) The two subway stations had been chosen on the basis subway stations was higher than that of other high-crime subway stations not equipped with closed-circuit-television.
Does not impact our conclusion that there was an INCREASE in crime.Drop It.

(B) The rate of increase in crimes reported for two subway stations was higher than that of other high-crime subway stations not equipped with closed-circuit television.
This answer Choice does resonate with the thinking of City Officials that there was an increase in crime. Strengthens the claim. Drop it.

(C) The percentage of all crimes committed at the two subway stations that were reported rose as a result of increased instances of observations of crime on the closed-circuit televisions.
[b]Bingo. Shows that there was an increase in crime, but the reason being increased surveillance rather than the actual increase in the no. Keep it.[/b]

(D) The year in which the experiment was conducted was a year in which the total number of crimes reported in the city fell.
Irrelevant. Drop It.

(E) Closed-circuit televisions installed in shops and stores throughout the city have proved to be useful in the prevention of shoplifting and burglaries.
Irrelevant. Drop it.

Answer: C
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Can anyone tell me how to eliminate E and why it is not the answer?
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Dhairya1511

Option E states "Closed-circuit televisions installed in shops and stores throughout the city have proved to be useful in the prevention of shoplifting and burglaries"


The passage talks about installation of closed circuit televisions on the subway stations, and not in city. This option will breach the context of the passage as we are only and only talking about the installation of closed circuit televisions at Subway stations. Hence, the option is out of scope and can be dropped. Hope this helps.

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I actually related this to what similarly happened during Covid. People were surprised that once Covid tests came out, there was an increase in Covid cases. We understood this is because people finally had a test to confirm whether they had Covid or not. Thus, with the test rollout, we saw an increase in REPORTED Covid cases.
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Aha! Classic GMAT trick. This is one of the many question types where they want you to compare apples to oranges.

In this case, 'crime' being the apples and 'crimes reported' being the oranges.

Argument theorizes that 'Installation of the CCTVs has lead to increase in crime'. Note that argument suggests causality. And it states premise 'crimes reported have increase'.

What's wrong? Crime rate can remain the same or even decrease despite of crimes reported increased. Maybe CCTVs are more useful as crimes went unreported in past but now they are being reported.

Answer choice C exactly says this.

That is your answer ladies and gentlemen.

If you like my answers, dont forget to upvote.

Su!
Bunuel
A year after the start an experiment to decrease crime in two high-crime subway stations by the installation of closed-circuit televisions, the experiment is being discontinued, city officials say the program has led to an increase in crime, citing the fact that following the installation, both stations showed increases in the number of crimes reported.

Which of the following, if true, most seriously weakens the claim of the city officials that the program has led to an increase in crime?


(A) The two subway stations had been chosen on the basis subway stations was higher than that of other high-crime subway stations not equipped with closed-circuit-television.

(B) The rate of increase in crimes reported for two subway stations was higher than that of other high-crime subway stations not equipped with closed-circuit television.

(C) The percentage of all crimes committed at the two subway stations that were reported rose as a result of increased instances of observations of crime on the closed-circuit televisions.

(D) The year in which the experiment was conducted was a year in which the total number of crimes reported in the city fell.

(E) Closed-circuit televisions installed in shops and stores throughout the city have proved to be useful in the prevention of shoplifting and burglaries.
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