From OG12: The Eurasian ruffe, a fish species inadvertently : GMAT Critical Reasoning (CR)
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# From OG12: The Eurasian ruffe, a fish species inadvertently

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From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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15 Feb 2010, 04:35
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From OG12:

The Eurasian ruffe, a fish species inadvertently introduced into North America’s Great Lakes in recent years,
feeds on the eggs of lake whitefish, a native species, thus threatening the lakes’ natural ecosystem. To help
track the ruffe’s spread, government agencies have produced wallet-sized cards about the ruffe. The cards
contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe
they catch.

Which of the following, if true, would provide most support for the prediction that the agencies’ action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey.
(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.
(C) Most people who fi sh recreationally on the Great Lakes are interested in the preservation of the lake
whitefi sh because it is a highly prized game fish.
(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.
(E) The bait that most people use when fi shing for whitefi sh on the Great Lakes is not attractive to ruffe.
[Reveal] Spoiler: OA

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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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15 Feb 2010, 04:50
An explanation:

A) If ruffe are unattractive as prey, they will probably spread more quickly in the Great Lakes. This
will most likely have little effect on whether the wallet-sized cards will help government agencies
track the ruffe.

I don't understand why if ruffe are unattractive as prey, they will probably spread more quickly in the Great Lakes?

I'm waiting for your suggestions, guys!

P.S. The correct answer is C.
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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15 Feb 2010, 05:40
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aiglos wrote:
From OG12:

The Eurasian ruffe, a fish species inadvertently introduced into North America’s Great Lakes in recent years,
feeds on the eggs of lake whitefish, a native species, thus threatening the lakes’ natural ecosystem. To help
track the ruffe’s spread, government agencies have produced wallet-sized cards about the ruffe. The cards
contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe
they catch.

Which of the following, if true, would provide most support for the prediction that the agencies’ action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey.>>> It does neither strengthens nor weakens the agency's action: OUT.
(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.>> Nothing has been said about day/night time fishing :OUT
(C) Most people who fish recreationally on the Great Lakes are interested in the preservation of the lake
whitefish because it is a highly prized game fish.>>>> People fish just for recreation and they might fish ruffe (people want to preserve the lake)after receiving the information from agency's actions : IN
(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.>>> Premise already given in the question.It does neither strengthens nor weakens the agency's action: OUT.
(E) The bait that most people use when fishing for whitefish on the Great Lakes is not attractive to ruffe.Additional Information.It does neither strengthens nor weakens the agency's action: OUT.

FINALLY C
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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15 Feb 2010, 06:14
nverma
great logic, congratulations !
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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29 Apr 2011, 07:34
simple C , fairly easy question with no confusing options.
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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29 Apr 2011, 07:46
aiglos wrote:
From OG12:

The Eurasian ruffe, a fish species inadvertently introduced into North America’s Great Lakes in recent years,
feeds on the eggs of lake whitefish, a native species, thus threatening the lakes’ natural ecosystem. To help
track the ruffe’s spread, government agencies have produced wallet-sized cards about the ruffe. The cards
contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe
they catch.

Which of the following, if true, would provide most support for the prediction that the agencies’ action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey. --neutral.
(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.-- weakens.
(C) Most people who fi sh recreationally on the Great Lakes are interested in the preservation of the lake
whitefi sh because it is a highly prized game fish. -- IMO
(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there. --neutral.
(E) The bait that most people use when fi shing for whitefi sh on the Great Lakes is not attractive to ruffe. -- weakens.

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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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02 Sep 2011, 06:53
level of this one ?? 500 ???'
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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17 Sep 2014, 05:22
Although C is Appropriate Answer.

What is the flaw in E?

If the anglers use a bait which is not attractive to ruffe then surely they will not be able to catch Ruffe fish. However, after awareness generated by Govt. Agency regarding the dangers posed by ruffe. These anglers would likely change the Bait to something that attracts ruffe fish inorder to catch it.

The above reasoning is similar to Option C reasoning that after being aware of ..... anglers will start reporting ruffe catch to govt.
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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01 Dec 2014, 19:53
finally some correct answer aftera a string of wrong answers ....
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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25 Dec 2014, 04:51
Can Option A be used to prove that ruffe is easy to identify thud supporting the agencies action?/
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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14 Jan 2015, 22:13
Main Point: Ruffs population is threatening whitefish -> government should control ruffs somehow so they create a card and urge people to report ruffs
Prove it: Choose a AC which will prove that card idea will work

A. features of ruffe fins...does nothing to prove
B. this weakens or out of focus
C. proves it that people fishing at lake will report ruffe because its a highly prized fish.
D. same premise as the argument
E. weakens or out of focus

Best Choice: C

aiglos wrote:
From OG12:

The Eurasian ruffe, a fish species inadvertently introduced into North America’s Great Lakes in recent years,
feeds on the eggs of lake whitefish, a native species, thus threatening the lakes’ natural ecosystem. To help
track the ruffe’s spread, government agencies have produced wallet-sized cards about the ruffe. The cards
contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe
they catch.

Which of the following, if true, would provide most support for the prediction that the agencies’ action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey.
(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.
(C) Most people who fi sh recreationally on the Great Lakes are interested in the preservation of the lake
whitefi sh because it is a highly prized game fish.
(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.
(E) The bait that most people use when fi shing for whitefi sh on the Great Lakes is not attractive to ruffe.
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Re: From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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16 Feb 2016, 03:26
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From OG12: The Eurasian ruffe, a fish species inadvertently [#permalink]

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14 Mar 2016, 23:33
We were being told again and again that GMAT is about tunnel vision. But that was exactly why I was trapped in this question.

In my notes, I highlighted "sights of ruffe" as keyword and "easiness in sighting ruffe" as possible answer. That led me to deleting C (we are talking about tracking ruffe, NOT how highly-prized whitefish can be). Consecutively, I crossed all answers off and got trapped for over 3 mins.

Is there any suggestion for further improvement in catching the right keyword?
From OG12: The Eurasian ruffe, a fish species inadvertently   [#permalink] 14 Mar 2016, 23:33
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# From OG12: The Eurasian ruffe, a fish species inadvertently

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