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In the nation of Partoria, large trucks currently account

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In the nation of Partoria, large trucks currently account [#permalink]

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New post 08 Nov 2017, 20:02
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Difficulty:

  55% (hard)

Question Stats:

68% (01:25) correct 32% (01:38) wrong based on 111 sessions

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Hi, this CR i took from Thursday with Ron video. However I still do not understand how the correct answer makes sense.

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria's roads but are involved in 12 percent of all highway fatalities. The very largest trucks — those with three trailers — had less than a third of the accident rate of single- and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

(A) Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

(B) No matter what changes Partoria makes in the regulation of trucking, it will keep some smaller roads off-limits to all large trucks.

(C) Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

(D) In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

(E) In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks
[Reveal] Spoiler: OA

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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 08 Nov 2017, 20:36
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oanhsokie wrote:
Hi, this CR i took from Thursday with Ron video. However I still do not understand how the correct answer makes sense.

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria's roads but are involved in 12 percent of all highway fatalities. The very largest trucks — those with three trailers — had less than a third of the accident rate of single- and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

(A) Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

(B) No matter what changes Partoria makes in the regulation of trucking, it will keep some smaller roads off-limits to all large trucks.

(C) Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

(D) In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

(E) In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks



Hi...
The crux is that " three trailer trucks are involved in less number of accidents as compared to two and single trailer truck."
From this the author concluded that we should shift towards three trailer.

We have to weaken it..

I'll just explain A as it is the clear answer.

A tells us that 3-trailer are used in very lightly traveled roads.

From this we can conclude that the usage of 3-trailer trucks has been only on roads which are less likely to have a collision. So we cannot claim less number of accidents of 3-trailer to the truck itself but to outside factor that is road.
So it punches a hole in the argument that 3-traliet are more safe.
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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 08 Nov 2017, 21:01
Logically E doesn’t even make sense which is why I went with A.

Thursday’s with Ron, good stuff.

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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 08 Nov 2017, 21:28
oanhsokie wrote:
Hi, this CR i took from Thursday with Ron video. However I still do not understand how the correct answer makes sense.

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria's roads but are involved in 12 percent of all highway fatalities. The very largest trucks — those with three trailers — had less than a third of the accident rate of single- and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

(A) Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

(B) No matter what changes Partoria makes in the regulation of trucking, it will keep some smaller roads off-limits to all large trucks.

(C) Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

(D) In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

(E) In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks



Reasons to eliminate answers.

B - Incorrect, This statement states what would happen in future if the conclusion is true. Supports the argument
C - Irrelevant, This statement provide about the trucks. we need information about triple-trailer truck vs single and double trailer truck
D - Irrelevant, This gives extra information and doesn't weak the argument.
E - Though this statement tells about triple-trailer truck and single-trailer truck, it doesn't weaken.

A - Weakens, Triple-trailer truck were used only in lightly traveled section of highways. we cannot conclude that triple-trailer truckers are better than single and double trailer trucker.
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Kudos [?]: 5 [0], given: 12

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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 09 Nov 2017, 00:46
chetan2u wrote:
oanhsokie wrote:
Hi, this CR i took from Thursday with Ron video. However I still do not understand how the correct answer makes sense.

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria's roads but are involved in 12 percent of all highway fatalities. The very largest trucks — those with three trailers — had less than a third of the accident rate of single- and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

(A) Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

(B) No matter what changes Partoria makes in the regulation of trucking, it will keep some smaller roads off-limits to all large trucks.

(C) Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

(D) In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

(E) In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks



Hi...
The crux is that " three trailer trucks are involved in less number of accidents as compared to two and single trailer truck."
From this the author concluded that we should shift towards three trailer.

We have to weaken it..

I'll just explain A as it is the clear answer.

A tells us that 3-trailer are used in very lightly traveled roads.

From this we can conclude that the usage of 3-trailer trucks has been only on roads which are less likely to have a collision. So we cannot claim less number of accidents of 3-trailer to the truck itself but to outside factor that is road.
So it punches a hole in the argument that 3-traliet are more safe.



I kinda understand it clearer. So i thought the logic reasoning here is that
Conclusion : triple trailer trucks w low accident rate should be used in order to reduce highway death rates
Pre-think: Is there any other reason which makes triple trailer trucks should be used? (rather than its low accident rate)

then option A makes sense here.
That it's becuz Triple trailer trucks are used in lightly traveled road only -> it can reduce highway death rates (another cause founded)
Am I right?

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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 13 Nov 2017, 00:00
Hi There,

Imagine someone is doing only doing 600 level GMAT questions - accuracy rate should be high.
Now, if some other one is doing 600 plus 700 level questions - the hard stuff and the easy stuff - accuracy rate will take a hit.

A is saying
Large truck is only doing 600 questions, i.e. lightly traveled sections of major highways only..
Other trucks doing all sort of different questions (and dealing with all sort of idiots on the road!)

Easy A

Cheers
RzS

oanhsokie wrote:
Hi, this CR i took from Thursday with Ron video. However I still do not understand how the correct answer makes sense.

In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria's roads but are involved in 12 percent of all highway fatalities. The very largest trucks — those with three trailers — had less than a third of the accident rate of single- and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.

Which of the following, if true, most seriously weakens the argument?

(A) Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only.

(B) No matter what changes Partoria makes in the regulation of trucking, it will keep some smaller roads off-limits to all large trucks.

(C) Very few fatal collisions involving trucks in Partoria are collisions between two trucks.

(D) In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.

(E) In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks

Kudos [?]: 9 [0], given: 115

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Re: In the nation of Partoria, large trucks currently account [#permalink]

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New post 13 Nov 2017, 01:09
IMO Answer A
From the argument we can conclude that the usage of 3-trailer trucks has been only on roads which are less likely to have a collision. So we cannot claim less number of accidents of 3-trailer to the truck itself but to outside factor that is road.Please give me kudos . I need them badly to unlock gmatclub tests.

Kudos [?]: 58 [0], given: 0

Re: In the nation of Partoria, large trucks currently account   [#permalink] 13 Nov 2017, 01:09
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