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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
Hi Binit,

B actually in a way strengthens the argument IMO by saying that "the areas have suffered greater flood damage than they did in the previous decade."

Conclusion:flood-control projects are expensive engineering mistakes and a substantial waste of resources.

This is a weaken question so we either need an alternate reason for the observed ineffectiveness of the flood control measures or find out a reason that did not fix the initial problem in the first place(ie. with respect to the argument).

Now as per A, we notice that the problem persisted in say X area and not in Y area and hence X resorted to flood-control projects in 1980.

When floods cant affect Y(say they are high altitude or so) it directly implies that still even till date.."The cost of flood damage since 1980 has been greater in areas that have adopted flood-control measures".

Hope it helps.
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
Hi dominicraj,

Thanks for your response. I got it. I totally misunderstood the argument. Somehow, I thought the first line of the argument talks about the cost of damage per flood after 1980. That's funny :)
A obviously is a weakener and B strengthens the argument and gives some incentive to doubt the engineering dept. Thank you so much.
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
800orDie wrote:
The cost of flood damage since 1980 has been greater in areas that have adopted flood-control measures than in those that have not. Thus, flood-control projects are expensive engineering mistakes and a substantial waste of resources.

Which of the following, if true, would be most damaging to the argument above?

A. Those areas that had not suffered flood damage before 1980 are the only ones that have not adopted flood-control measures.
B. Since 1980, those areas that have taken flood-control measures have suffered greater flood damage than they did in the previous decade.
C. The cost of flood damage has increased every year since 1980.
D. Faulty engineering has not been the only cause of the failure of flood-control projects.
E. The amount of rainfall since 1980 has been substantially greater than normal.

The cost of flood damage since 1980 has been greater in areas that have adopted flood-control measures than in those that have not. The the cost of flood damage BEFORE 1980 had ALSO been greater in areas that had adopted flood-control measures than in those that had not, because (A) before 1980, there had no flood damage in non-controlled area. So, the conclusion that flood-control projects are expensive engineering mistakes and a substantial waste of resources can not be justified.
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
can someone please tell me ,how to proceed on this question. What thing we need to weak or what thing we need to find out in order to proceed... or how to approach this question?
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
Someone was asking about the source. This was also on a really old paper test. Maybe from the early 1980s.
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
I was stuck between answer choices A & D.
The argument says "The cost of flood damage since 1980 has been greater in areas that have adopted flood-control measures than in those that have not." It is inferred from this that there has been some amount of damage that has happened in areas that have not adopted flood control measures.
I eliminated A thinking that whatever happened earlier is irrelevant here. Maybe the areas weren't getting flooded earlier but somehow they are now and that's what we are comparing in the argument.

Is there an error in my understanding?
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
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Re: The cost of flood damage since 1980 has been greater in areas that hav [#permalink]
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