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As a construction material, bamboo is as strong as steel and sturdier

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Re: As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 24 May 2018, 10:14
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Dear experts,

Could you please explain why B is correct. In order B to explain the except situation above we should make assumption which, I think ,requires far more assumption than required in any GMAT CR question. Also, it is not everyone's common sense that highly valued land is used primarily for multistorey buildings. One, for example, could argue that highly valued lands is occupied by wealthy people who constructed mansions or there's not any city-like (not sure there's such a word :)) objects (skyscrapers, industrial plants etc) and thus the atmosphere is fresh, so land prices are high.

On the other hand, answer choice C says that bamboo bears some additional cost. That's why total cost of construction in lower priced lands makes better economics sense. However, if we want to construct something from bamboo in high valued land there will be higher land cost+ additional bamboo costs which makes construction less efficient from economic standpoint than that of tropical areas where land prices are lower.

What I am missing here?
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Re: As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 01 Jun 2018, 21:40
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Mehemmed wrote:
Dear experts,

Could you please explain why B is correct. In order B to explain the except situation above we should make assumption which, I think ,requires far more assumption than required in any GMAT CR question. Also, it is not everyone's common sense that highly valued land is used primarily for multistorey buildings. One, for example, could argue that highly valued lands is occupied by wealthy people who constructed mansions or there's not any city-like (not sure there's such a word :)) objects (skyscrapers, industrial plants etc) and thus the atmosphere is fresh, so land prices are high.

On the other hand, answer choice C says that bamboo bears some additional cost. That's why total cost of construction in lower priced lands makes better economics sense. However, if we want to construct something from bamboo in high valued land there will be higher land cost+ additional bamboo costs which makes construction less efficient from economic standpoint than that of tropical areas where land prices are lower.

What I am missing here?

Mehemmed, yes, just because land values are high does NOT necessarily mean that it will be used for multi-story buildings. But we are not looking for a 100% air-tight explanation. We are looking for something that "most helps to explain the exception noted above."

Quote:
(C) In order to protect it from being damaged by termites and beetles, bamboo must be soaked, at some expense, in a preservative.

We are told that "in tropical areas bamboo is a much less expensive construction material than either steel or concrete and is always readily available." (C) tells us that there is some additional cost involved in using bamboo. But if bamboo is MUCH less expensive, who cares if there is SOME additional cost?

It's like saying that prices at Grocery Store A are MUCH cheaper than prices at Grocery Store B (assume all other factors are equal). But Store A charges a small fee for every plastic or paper bag used to bag your groceries whereas Store B does not. Would that small fee prevent you from shopping at Store A? Of course not.

More importantly, we are looking for something that explains why bamboo makes better economic sense in tropical areas EXCEPT when land values are high. Choice (C) describes a factor that would affect price REGARDLESS of whether land values are high. Thus, (C) cannot explain the exception and must be eliminated.

This post explains why (B) is the best answer.

I hope that helps!
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Re: As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 02 Jun 2018, 05:55
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I was stuck between B & E, but ultimately chose E because it was mentioned in stimulus that "As a construction material, bamboo is as strong as steel and sturdier than concrete." and thought this could be the reason to eliminate B. I mean if Bamboo is as strong as steel and concrete then it should be suitable for even multi-storied buildings.. Can anyone help to explain why my reasoning could be wrong? I chose E because availability of a resource is counted as one of the economical factors..
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Re: As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 23 Jan 2019, 09:01
I, like many others, thought that (E) was an attractive answer. However, it is wrong for a few reasons. First, "area where land values are increasing" is not the same as "area where land values are high". And second, as many experts have said, the premise in the arguments should be accepted as fact. Thus, even if bamboo is cleared to make way for construction, then we should still assume that bamboo is readily available. Keep in mind this quote from OG19: "In reading the arguments, it is important to pay attention to the logical reasoning used; the actual truth of statements portrayed as fact is not important."
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As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 30 Jun 2019, 08:58
egmat wrote:
targetgmatchotu wrote:
Somehow,I am not at all with the solution that OG gave:

Following is an extract from OG-13 Solution Q94:
Multistory buildings are particularly desirable in areas where land values are high, but
bamboo may not be suitable for such buildings.


Now where in the stimulus there is mention of the above reasoning ?

It is just that we are assuming and that isn't allowed in GMAT CR?

Plz Advice

Rgds,
TGC


Hi,

The highlighted statement is actually not true and most people have misconceptions around this.

GMAT CR section is not about formal logic where you have to take the literal meaning of each word and convert that into a logical representation using sets or some other notations and then apply classical logical rules to arrive at the answer.

Rather, GMAT CR section is a test of your everyday logic and thus, it uses some of the most intuitive understandings such as

1. People prefer more profit over less profit
2. Dollar sales should increase with the increase in the number of customers
3. A person who is more willing to use meditation technique is expected to use such techniques over a longer term than a person who is less willing.

Don't you think these statements seem very common sense?

However, as you can see that these statement can also be false in some specific scenarios; however, generally, they make a lot of sense. Actually such understanding is needed to tackle a lot of CR questions.

I did not create these three statements out of thin air. The understanding of such statements are needed to tackle below three respective OG questions:

Question 1

One name-brand cereal manufacturer is about to reduce wholesale prices for its cereals by 20% because consumers have been switching from its cereals to cheaper store brands. The success of this strategy relies on the assumption that supermarkets will pass on all of the savings by lowering the prices they charge consumers for the manufacturers' cereals. Although supermarkets usually pass on such savings, in this case it is likely that supermarkets will not do so because ............................................................

a) Several other name-brand cereal manufacturers are about to reduce the wholesale prices of their cereals
b) the average price per box of name-band cereals has significantly increases over the past 10 years.
c) total annual sales of cereal - including both name-brand and store-brand cereals -have increased over the past 10 years.
d) supermarkets currently make far more profit on sales of store-brand cereals than on sales of name-brand cereals
e) the current prices of manufacturers' cereals are comparable to the prices of name-brand cereals produced by other cereal manufacturers.

Correct Option: D

Question 2

Theatergoer: In January of last year, the Megaplex chain of movie theaters started popping its popcorn in canola oil, instead of the less healthful coconut oi that it had been using until then. Now Megaplex is planning to switch back, saying that the change has hurt popcorn sales. That claim is false, however, since according to Megaplex's own sales figures, Megaplex sold five percent more popcorn last year than in the previous year.
  Which of the following, if true, most seriously weakens the theaterg0er‘s argument?
  A. When it switched from using coconut oil to using canola oil, Megaplex made sure that the chain received a great deal of publicity stressing the health benefits of the change.
  B. Megaplex makes more money on food and beverages sold at its theaters than it does on sales of movie tickets.
  C. In a survey to determine pubic response to the change to canola oil, very few of Megapiex's customers said that the change had affected their popcorn-buying habits.
  D. Total sales of all food and beverage items at Megaplex's movie theaters increased by less than five percent last year.
  E. Total attendance at Megaplex's movie theaters was more than 20 percent higher last year than the year before.

Correct Option: E

Question 3

A study of high blood pressure treatments found that certain meditation techniques and the most commonly prescribed drugs are equally effective if the selected treatment is followed as directed over the long term. Half the patients given drugs soon stop taking them regularly, whereas eighty percent of the study's participants who were taught meditation techniques were still regularly using them five years later. Therefore, the meditation treatment is the one likely to produce the best results.
  Which of the following, if true, most seriously weakens the argument?
  A. People who have high blood pressure are usually advised by their physicians to make changes in diet that have been found in many cases to reduce the severity of the condition.
  B. The participants in the study were selected in part on the basis of their willingness to use meditation techniques.
  C. Meditation techniques can reduce the blood pressure of people who do not suffer from high blood pressure.
  D. Some of the participants in the study whose high blood pressure was controlled through meditation techniques were physicians.
  E. Many people with dangerously high blood pressure are unaware of their condition.

Correct Option: B

Look at the correct answers of the above questions and look at the three common sense statements I made and observe that without those common sense statements, the correct answer choices will not be correct.

Similar is the case with the current questions: We need to have this understanding that places where land values are high, multistory buildings will be preferred since on the same land, we can have more office or house space.

Hope this helps :)

Let me know if any further clarification is needed.

Thanks,
Chiranjeev


Hi Payal,

I understand that we need to assume something here to have correct answer.

I selected C because in our part of the world (Gujarat , India), termites problem is mainly for homes/buildings that are on land. E.g. A Bungalow.

Some people also avoid purchasing bungalow because of the same reason. Instead, they buy a flat in a multistory building.

Also, we spend money to make our furniture termites free but it does not guarantee a success. After few years/month you again see the same problem.

With this thought in mind I selected C as bamboo takes extra expense to use on high value land. So it'd be better to use something else on high value land. It does not make sense to use Bamboo with extra expense to make it free from termites now and after some time you again see same problem. Continued expense to make it termites free will be more expensive plus it may affect quality of BAMBOO. You have already purchased high value land and you make more expense using bamboo. Hence, it makes ideal choice to use something else instead of Bamboo on land.

Am I incorrect anywhere in my reasoning? Please help me here.

Others also can contribute to my reasoning.

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Re: As a construction material, bamboo is as strong as steel and sturdier  [#permalink]

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New post 18 Sep 2019, 07:15
[quote="betterscore"]As a construction material, bamboo is as strong as steel and sturdier than concrete. Moreover, in tropical areas bamboo is a much less expensive construction material than either steel or concrete and is always readily available. In tropical areas, therefore, building with bamboo makes better economic sense than building with steel or concrete, except where land values are high.

Which of the following, if true, most helps to explain the exception noted above?


(A) Buildings constructed of bamboo are less likely to suffer earthquake damage than are steel and concrete buildings.

(B) Bamboo is unsuitable as a building material for multistory buildings.

(C) In order to protect it from being damaged by termites and beetles, bamboo must be soaked, at some expense, in a preservative.

(D) In some tropical areas, bamboo is used to make the scaffolding that is used during large construction projects.

(E) Bamboo growing in an area where land values are increasing is often cleared to make way for construction.

I chose E over B and I wondered why E is incorrect. Then I read the passage carefully and then found a phrase that says "Bamboo is always readily available" so this phrase makes E wrong and B correct. Damn, Devil is in the details.
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Re: As a construction material, bamboo is as strong as steel and sturdier   [#permalink] 18 Sep 2019, 07:15

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