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Earlier this year, our city’s three main reservoirs had unusually low

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Earlier this year, our city’s three main reservoirs had unusually low  [#permalink]

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New post 10 Oct 2019, 23:21
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Question Stats:

76% (01:38) correct 24% (02:04) wrong based on 49 sessions

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Earlier this year, our city’s three main reservoirs had unusually low water levels. As a result, city officials initiated a program that encouraged residents to reduce their water usage by 20 percent. Since the program was announced, the water level at all three reservoirs has returned to normal. Our city officials should be applauded for their role in preventing a crisis.

Which of the following, if true, casts the most doubt on the efficacy of the officials’ program?

(A). The current water level in the reservoirs is lower than it was at the same time last year.

(B). Other nearby reservoirs recovered from lower water levels this year, even though those reservoirs provide water to cities that did not enact water restriction policies.

(C). Residents reduced their water usage for lawn maintenance significantly more than they did for washing clothes.

(D). Imposing stiff penalties on residents who did not conserve water would have resulted in even higher water levels in the reservoirs.

(E). Water usage in the city dropped steadily during the first two weeks of the program before leveling off.

Source: Kaplan Prep Plus 2020

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Earlier this year, our city’s three main reservoirs had unusually low  [#permalink]

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New post 13 Oct 2019, 21:17
Applying the method of elimination:

(A). The current water level in the reservoirs is lower than it was at the same time last year (Contradicts to the info in the passage, direct contradiction)

(B). Other nearby reservoirs recovered from lower water levels this year, even though those reservoirs provide water to cities that did not enact water restriction policies. (Can be a possible source of verified info, since this could either mean rainfall increased or citizens became cautious or population decreased, not necessarily a success of the programme)

(C). Residents reduced their water usage for lawn maintenance significantly more than they did for washing clothes. (Redundant)

(D). Imposing stiff penalties on residents who did not conserve water would have resulted in even higher water levels in the reservoirs. (Could be true, but is Irrelevant)

(E). Water usage in the city dropped steadily during the first two weeks of the program before levelling off. (We are concerned about the current water levels only. It might have happened that the citizens took some time in implementing the law, so we cannot be sanguine about the success of the programme)
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Earlier this year, our city’s three main reservoirs had unusually low   [#permalink] 13 Oct 2019, 21:17
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Earlier this year, our city’s three main reservoirs had unusually low

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