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If the city starts requiring residents to sort the materials that they

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If the city starts requiring residents to sort the materials that they  [#permalink]

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Question Stats:

39% (02:38) correct 61% (02:35) wrong based on 150 sessions

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If the city starts requiring residents to sort the materials that they put out for recycling, then many residents will put more recyclables in with their regular garbage. This will result in more recyclables being buried in the city's landfill. However, because of the cost of having city workers do the sorting, the sanitation department will not stay within its budget unless the sorting requirement for residents is implemented.

Which one of the following statements logically follows from the information above?


(A) Most of the city's residents will continue to recycle even if a sorting requirement is implemented.

(B) If the city starts requiring residents to sort their recyclables, then all of the residents who continue to recycle will sort their recyclables.

(C) Implementing the sorting requirement would not cause the city's annual cost of sending garbage to its landfill to exceed its current annual cost of sorting recyclables.

(D) The amount of recyclables going to the city's landfill will increase if the sanitation department stays within its budget.

(E) If the city implements the sorting requirement, the sanitation department will stay within its budget.

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Originally posted by patto on 26 Feb 2019, 13:12.
Last edited by Bunuel on 26 Feb 2019, 21:14, edited 1 time in total.
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Re: If the city starts requiring residents to sort the materials that they  [#permalink]

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New post 26 Feb 2019, 13:20
Can anybody explain me this? I thought the answer should be E but it is D and I am not able to figure out why.

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Re: If the city starts requiring residents to sort the materials that they  [#permalink]

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New post 26 Feb 2019, 13:29
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Charu11111 wrote:
Can anybody explain me this? I thought the answer should be E but it is D and I am not able to figure out why.

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This is a tough question. It involves conditional reasoning.
Look:

Statement (1): Sorting (necessary condition) ---> Increase GR (suffient condition)

Statement (2): Increase GR (necessary condition) ----> Increase LR (suffient condition)

Statement (3): Budget (necessary condition) ---> Sorting (suffient condition)

Then, we can conclude

Budget --> Sorting --> Increase GR --> Increase LR

Therefore, we can conclude that Budget --> Increase LR. That's exactly what D says.

Instead, E says that Sorting --> Budget. That's not what we can deduce from the argument.

I hope it's useful.
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Re: If the city starts requiring residents to sort the materials that they  [#permalink]

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New post 27 Feb 2019, 03:09
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Though it is mentioned in the argument : "because of the cost of having city workers do the sorting, the sanitation department will not stay within its budget", while drawing the logical inference, can we take it for granted that the city will definitely remain within its budget if the sorting workers are not recruited...Cant there be some other ways which could lead to the sanitation dept exceeding its budget even without the implementation of sorting workers....

This is the reason I left D
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Re: If the city starts requiring residents to sort the materials that they  [#permalink]

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New post 03 Mar 2019, 09:27
I think ....I somewhat understood this!

So if Segregation by residents is implemented,then residents would lazily put the Recyclables too in the regular Garbage .

The regular garbage segregation at the land fill will cost heavily for the department of it's done by the workers at the landfill. so, because of this Segregation by residents needs to be implemented.

And if the segregation of the Recyclables by the residents is implemented,then naturally residents will put all of it in Regular Garbage and that would increase the landfill. that's what option D states and correctly follows.

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Re: If the city starts requiring residents to sort the materials that they  [#permalink]

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New post 23 Mar 2019, 06:26
Debashis Roy wrote:
GMATNinja
Though it is mentioned in the argument : "because of the cost of having city workers do the sorting, the sanitation department will not stay within its budget", while drawing the logical inference, can we take it for granted that the city will definitely remain within its budget if the sorting workers are not recruited...Cant there be some other ways which could lead to the sanitation dept exceeding its budget even without the implementation of sorting workers....

This is the reason I left D

This is a tricky one! Let's break down the passage first.

The passage states that "the sanitation department will not stay within its budget unless the sorting requirement for residents is implemented." This means that having residents sort their recyclables is REQUIRED in order for the sanitation department to stay within its budget.

In addition, we know that if residents sort their own recyclables, many will put these items in the regular garbage, which "will result in more recyclables being buried in the city's landfill."

To answer the question, we must find an answer choice that "logically follows from the information above."

Now, let's take a look at answer choice (D):
Quote:
(D) The amount of recyclables going to the city's landfill will increase if the sanitation department stays within its budget.

We know from the passage that having residents sort their recyclables is REQUIRED in order for the sanitation department to stay within its budget. So, if the sanitation department stays within its budget (as stated in this answer choice), then the sorting requirement for residents MUST be implemented. Further, we know that if the sorting requirement is implemented, then more recyclables will end up in the city's landfill.

So, it follows logically that if the sanitation department stays within its budget, the amount of recyclables going to the city's landfill will increase. (D) is the correct answer.

Let's address your specific questions:

Quote:
1) "Can we take it for granted that the city will definitely remain within its budget if the sorting workers are not recruited..."

We cannot take this for granted! Note that having residents sort recyclables instead of city workers doing so is a minimum requirement for the sanitation department to stay within its budget. So, the department will definitely NOT stay within budget unless the residents sort their recyclables -- which is very different than saying that the department definitely WILL stay within budget if this plan is implemented.

Quote:
2) "Cant there be some other ways which could lead to the sanitation dept exceeding its budget even without the implementation of sorting workers..."

Yes, there could be many other factors that lead to the sanitation department exceeding its budget. But again, the key is to realize that residents MUST sort their recycling in order for the sanitation department to have any chance to stay within its budget.

I hope that helps!
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Re: If the city starts requiring residents to sort the materials that they   [#permalink] 23 Mar 2019, 06:26
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