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# V02-30

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Math Expert
Joined: 02 Sep 2009
Posts: 52231

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16 Sep 2014, 00:57
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Difficulty:

35% (medium)

Question Stats:

68% (01:16) correct 32% (01:20) wrong based on 44 sessions

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According to a recent publication by the city council, the most cost-effective solution to the problem of congestion on State Highway 1 is to build an elevated roadway above the existing six lanes. This solution makes the most sense because it will save the expense of surveying and breaking new ground for an alternate route, and will also mean that crews will need to construct half as many lanes, since the current lanes will remain in use after the elevated portion is completed.

The conclusion in the passage above is based on which of the following assumptions?

A. That the city council has already approved funding for an elevated roadway above the existing highway.
B. That the cost of surveying and breaking new ground for an alternate route is greater than the difference in cost of constructing an elevated roadway and a normal roadway on the new ground.
C. That the large number of people traveling State Highway 1 every day make easing congestion a priority for the city council.
D. That the city council can not afford to fund the construction of more than six lanes, and so seeks a solution that will require building as few lanes as possible.
E. That drivers on State Highway 1 are unwilling to pay a toll to use the road, and so the city council must provide all funds for improvement.

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Joined: 02 Sep 2009
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16 Sep 2014, 00:57
Official Solution:

According to a recent publication by the city council, the most cost-effective solution to the problem of congestion on State Highway 1 is to build an elevated roadway above the existing six lanes. This solution makes the most sense because it will save the expense of surveying and breaking new ground for an alternate route, and will also mean that crews will need to construct half as many lanes, since the current lanes will remain in use after the elevated portion is completed.

The conclusion in the passage above is based on which of the following assumptions?

A. That the city council has already approved funding for an elevated roadway above the existing highway.
B. That the cost of surveying and breaking new ground for an alternate route is greater than the difference in cost of constructing an elevated roadway and a normal roadway on the new ground.
C. That the large number of people traveling State Highway 1 every day make easing congestion a priority for the city council.
D. That the city council can not afford to fund the construction of more than six lanes, and so seeks a solution that will require building as few lanes as possible.
E. That drivers on State Highway 1 are unwilling to pay a toll to use the road, and so the city council must provide all funds for improvement.

Situation A city council has recommended an elevated roadway as the most cost-effective solution to a local traffic problem.

Reasoning What assumption is present in the argument supporting this recommendation? The city council believes that surveying and breaking new ground would be the most expensive option, and that constructing new lanes will be more expensive than modifying existing ones. If it could be shown, however, that an elevated roadway will be more expensive than surveying and breaking new ground, the argument would fall apart.
1. The passage does not say that the council has already approved money for the project.
2. The city council’s publication presents the elevated roadway plan as a way to avoid the expense of surveying and breaking new ground. The assumption is that those costs would be prohibitive, and that the construction of an elevated roadway would be less expensive.
3. While priority for the project is implied, the mere fact of its importance does not affect which solution the council recommends.
4. The passage does not mention explicitly whether or not it can afford to construct a certain number of lanes.
5. This is outside the scope of the passage, since the question of tolls is never raised directly.

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Joined: 19 Jul 2015
Posts: 61
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GMAT 1: 720 Q51 V35
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27 Jul 2016, 10:45
1
Here 's what I feel about choice B.
Let x=cost of surveying and breaking new ground for an alternate route
y=cost of construction on alternate route(without x)
z=cost of constructing an elevated roadway
Now, in the argument it states that elevated highway saves the cost x as it doesn't need to survey and break new ground. But it is not necessary that x<z as choice B states.
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Joined: 14 Dec 2013
Posts: 2911
Location: Germany
Schools: German MBA
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)

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20 Aug 2016, 09:02
Navinder wrote:
Here 's what I feel about choice B.
Let x=cost of surveying and breaking new ground for an alternate route
y=cost of construction on alternate route(without x)
z=cost of constructing an elevated roadway
Now, in the argument it states that elevated highway saves the cost x as it doesn't need to survey and break new ground. But it is not necessary that x<z as choice B states.

Your point is valid - option B has been modified. Thank you.
Intern
Joined: 11 Jun 2018
Posts: 7

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16 Sep 2018, 21:07
Bunuel wrote:
Official Solution:

According to a recent publication by the city council, the most cost-effective solution to the problem of congestion on State Highway 1 is to build an elevated roadway above the existing six lanes. This solution makes the most sense because it will save the expense of surveying and breaking new ground for an alternate route, and will also mean that crews will need to construct half as many lanes, since the current lanes will remain in use after the elevated portion is completed.

The conclusion in the passage above is based on which of the following assumptions?

A. That the city council has already approved funding for an elevated roadway above the existing highway.
B. That the cost of surveying and breaking new ground for an alternate route is greater than the difference in cost of constructing an elevated roadway and a normal roadway on the new ground.
C. That the large number of people traveling State Highway 1 every day make easing congestion a priority for the city council.
D. That the city council can not afford to fund the construction of more than six lanes, and so seeks a solution that will require building as few lanes as possible.
E. That drivers on State Highway 1 are unwilling to pay a toll to use the road, and so the city council must provide all funds for improvement.

Situation A city council has recommended an elevated roadway as the most cost-effective solution to a local traffic problem.

Reasoning What assumption is present in the argument supporting this recommendation? The city council believes that surveying and breaking new ground would be the most expensive option, and that constructing new lanes will be more expensive than modifying existing ones. If it could be shown, however, that an elevated roadway will be more expensive than surveying and breaking new ground, the argument would fall apart.
1. The passage does not say that the council has already approved money for the project.
2. The city council’s publication presents the elevated roadway plan as a way to avoid the expense of surveying and breaking new ground. The assumption is that those costs would be prohibitive, and that the construction of an elevated roadway would be less expensive.
3. While priority for the project is implied, the mere fact of its importance does not affect which solution the council recommends.
4. The passage does not mention explicitly whether or not it can afford to construct a certain number of lanes.
5. This is outside the scope of the passage, since the question of tolls is never raised directly.

In option B, why is it the difference between a land road and an elevated road? Shouldn't it be just an elevated road?
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Joined: 14 Aug 2012
Posts: 91
Location: United States
GMAT 1: 620 Q43 V33
GMAT 2: 690 Q47 V38

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03 Nov 2018, 09:12
B. That the cost of surveying and breaking new ground for an alternate route is greater than the difference in cost of constructing an elevated roadway and a normal roadway on the new ground.

Aren't they comparing an elevated road on the existing highway on existing ground, as opposed to breaking new ground on an alternate route?
Re: V02-30 &nbs [#permalink] 03 Nov 2018, 09:12
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# V02-30

Moderators: chetan2u, Bunuel

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