GMAT Critical Reasoning Discussions

Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.

Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.

It can be inferred from the conversation above that Mark has interpreted Ronald's statement to mean that

(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months


My take is B
After hearing Ronald's statement, Mark says dat he disagrees wit it. So, he interpreted from Ronald's statement that if interest rates fall, housing prices must rise and presents a contradictory argument.
If we look at Mark's statement; He says the housing prices dint rise at all, which implies that he thinks that the prices must have increased. Hence option B

Guys,Correct me if i m wrong

The correct ans. is (B)
My take is B
After hearing Ronald's statement, Mark says dat he disagrees wit it. So, he interpreted from Ronald's statement that if interest rates fall, housing prices must rise and presents a contradictory argument.


my take is B

Please correct me if i am wrong
Teenagers are often priced out of the labor market by the government-mandated minimum-wage level because employers cannot afford to pay that much for extra help. Therefore, if Congress institutes a subminimum wage, a new lower legal wage for teenagers, the teenage unemployment rate, which has been rising since 1960, will no longer increase.
Which of the following, if true, would most weaken the argument above?
(A) Since 1960 the teenage unemployment rate has risen when the minimum wage has risen.
(B) Since 1960 the teenage unemployment rate has risen even when the minimum wage remained constant.
(C) Employers often hire extra help during holiday and warm weather seasons.
(D) The teenage unemployment rate rose more quickly in the 1970's than it did in the 1960's.
(E) The teenage unemployment rate has occasionally declined in the years since 1960.


My take is A

Answer with explanantion required ::


A vendor at a farmers' market wishes to increase sales of her organic radicchio. A 5-for-the-price-of-4 sale was successful in increasing sales of her organic peach marmalade, so the vendor decides to offer the same deal on the radicchio. Which of the following is an assumption on which her plan depends?


Consumers enjoy radicchio as much as they enjoy peach marmalade
Consumers who are willing to purchase large quantities of marmalade, which has a shelf life of one year, will be similarly willing to purchase large quantities of radicchio, which has a shelf life of 5-10 days.

Radicchio is currently in season.

Due to the secret recipe used for the vendor's peach marmalade, the vendor has fewer competitors selling a comparable peach marmalade at the farmers' market than selling radicchio.

The profit from selling 5 bunches of radicchio for the price of 4 will be greater than the profit from selling 5 jars of peach marmalade for the price of 4.

Answer with explanantion required ::


A vendor at a farmers market wishes to increase sales of her organic radicchio. A 5-for-the-price-of-4 sale was successful in increasing sales of her organic peach marmalade, so the vendor decides to offer the same deal on the radicchio. Which of the following is an assumption on which her plan depends?


Consumers enjoy radicchio as much as they enjoy peach marmalade

Consumers who are willing to purchase large quantities of marmalade, which has a shelf life of one year, will be similarly willing to purchase large quantities of radicchio, which has a shelf life of 5-10 days.

Radicchio is currently in season.

Due to the secret recipe used for the vendors peach marmalade, the vendor has fewer competitors selling a comparable peach marmalade at the farmers market than selling radicchio.

The profit from selling 5 bunches of radicchio for the price of 4 will be greater than the profit from selling 5 jars of peach marmalade for the price of 4.


Take marked in bold.

I find it a serious weakener of the argument and weakeners attack assumption. So took this one to be one.
martinF Says
is there ne book only for critical reasoning?


Hi martinF

There are two:

Powerscore CR Bible(Many people have recommended it)

Manhattan strategy guide for CR. ( I am reading this one and found it good )

F.A. Hayek, who called free will a phantom problem, observed that if we truly had free will, there would be no point in holding people responsible. What are praise and blame, after all, but tools used by people to causally shape the behaviour of others?
What is the assumption underlying Hayeks argument?
OPTIONS

1)Other peoples opinions do not affect peoples exercise of free will.
2)People shape others behaviour using the tools of praise and blame.
3)Only praise and blame work if people fully accept the consequences of their actions.
4)Those who truly want to exercise their free will should not care about other peoples opinions.
5)Holding people responsible for their behaviour is wrong if they are not free to behave as they choose.

F.A. Hayek, who called free will a phantom problem, observed that if we truly had free will, there would be no point in holding people responsible. What are praise and blame, after all, but tools used by people to causally shape the behaviour of others?
What is the assumption underlying Hayeks argument?
OPTIONS

1) Other peoples opinions do not affect peoples exercise of free will.
2) People shape others behaviour using the tools of praise and blame.
3) Only praise and blame work if people fully accept the consequences of their actions.
4) Those who truly want to exercise their free will should not care about other peoples opinions.
5) Holding people responsible for their behaviour is wrong if they are not free to behave as they choose.



What's the OA? my take is A
Teenagers are often priced out of the labor market by the government-mandated minimum-wage level because employers cannot afford to pay that much for extra help. Therefore, if Congress institutes a subminimum wage, a new lower legal wage for teenagers, the teenage unemployment rate, which has been rising since 1960, will no longer increase.
Which of the following, if true, would most weaken the argument above?
(A) Since 1960 the teenage unemployment rate has risen when the minimum wage has risen.
(B) Since 1960 the teenage unemployment rate has risen even when the minimum wage remained constant.
(C) Employers often hire extra help during holiday and warm weather seasons.
(D) The teenage unemployment rate rose more quickly in the 1970's than it did in the 1960's.
(E) The teenage unemployment rate has occasionally declined in the years since 1960.



My take is (E). Since after 1960, there have been times when the umemployment rate has declined which means there must be some other factor controlling the unemployment rate. Whats the OA ?

ans - option b

Many physicists claim that quantum mechanics may ultimately be able to explain all fundamental phenomena, and that, therefore, physical theory will soon be complete. However, every theory in the history of physics that was thought to be final eventually had to be rejected for failure to explain some new observation. For this reason, we can expect that quantum mechanics will not be the final theory.
Which one of the following arguments is most similar in its reasoning to the argument above?
(A) Only a few species of plants now grow in very dry climates; therefore, few species of animals can live in those climates.
(B) Four companies have marketed a new food processing product; therefore, a fifth company will not be able to market a similar product.
(C) Your sister is a very good chess player but she has never won a chess tournament; therefore, she will not win this chess tournament.
(D) A rare virus infected a group of people a decade ago; therefore, it will not reinfect the same population now.
(E) Each team member has failed to live up to people's expectations; therefore, the team will not live up to people's expectations.



C?
Hi martinF

There are two:

Powerscore CR Bible(Many people have recommended it)

Manhattan strategy guide for CR. ( I am reading this one and found it good )

heu abishekISB can u provide link of these two books?
F.A. Hayek, who called free will a phantom problem, observed that if we truly had free will, there would be no point in holding people responsible. What are praise and blame, after all, but tools used by people to causally shape the behaviour of others?
What is the assumption underlying Hayeks argument?
OPTIONS

1) Other peoples opinions do not affect peoples exercise of free will.
2) People shape others behaviour using the tools of praise and blame.
3) Only praise and blame work if people fully accept the consequences of their actions.
4) Those who truly want to exercise their free will should not care about other peoples opinions.
5) Holding people responsible for their behaviour is wrong if they are not free to behave as they choose
my take is in bold!!

shivangee Says
ans - option b


What is the OA.

Hey Cognizant/shivangee...
Could you throw some light on why the answer is (b). I thought it was A.
Many physicists claim that quantum mechanics may ultimately be able to explain all fundamental phenomena, and that, therefore, physical theory will soon be complete. However, every theory in the history of physics that was thought to be final eventually had to be rejected for failure to explain some new observation. For this reason, we can expect that quantum mechanics will not be the final theory.
Which one of the following arguments is most similar in its reasoning to the argument above?
(A) Only a few species of plants now grow in very dry climates; therefore, few species of animals can live in those climates.
(B) Four companies have marketed a new food processing product; therefore, a fifth company will not be able to market a similar product.
(C) Your sister is a very good chess player but she has never won a chess tournament; therefore, she will not win this chess tournament.
(D) A rare virus infected a group of people a decade ago; therefore, it will not reinfect the same population now.
(E) Each team member has failed to live up to people's expectations; therefore, the team will not live up to people's expectations.



I too will go with (c).
The OLEX Petroleum Company has recently determined that it could cut its refining costs by closing its Grenville refinery and consolidating all refining at its Tasberg refinery. Closing the Grenville refinery, however, would mean the immediate loss of about 1,200 jobs in the Grenville area. Eventually the lives of more than 10,000 people would be seriously disrupted. Therefore, OLEXs decision, announced yesterday, to keep Grenville open shows that at OLEX social concerns sometimes outweigh the desire for higher profits. Which of the following, if true, most seriously undermines the argument given?

A. The Grenville refinery, although it operates at a higher cost than the Tasberg refinery, has nevertheless been moderately profitable for many years.

B. Even though OLEX could consolidate all its refining at the Tasberg plant, doing so at the Grenville plant would not be feasible.

C. The Tasberg refinery is more favorably situated than the Grenville refinery with respect to the major supply routes for raw petroleum.

D. If the Grenville refinery were ever closed and operations at the Tasberg refinery expanded, job openings at Tasberg would to the extent possible be filled with people formerly employed at Grenville.

E. Closure of the Grenville refinery would mean compliance, at enormous cost, with demanding local codes regulating the cleanup of abandoned industrial sites.


My take is E. It leads to complex situations such as loss of jobs, threatening lives and social problems. Hence, the closest would be E
The OLEX Petroleum Company has recently determined that it could cut its refining costs by closing its Grenville refinery and consolidating all refining at its Tasberg refinery. Closing the Grenville refinery, however, would mean the immediate loss of about 1,200 jobs in the Grenville area. Eventually the lives of more than 10,000 people would be seriously disrupted. Therefore, OLEXs decision, announced yesterday, to keep Grenville open shows that at OLEX social concerns sometimes outweigh the desire for higher profits. Which of the following, if true, most seriously undermines the argument given?

A. The Grenville refinery, although it operates at a higher cost than the Tasberg refinery, has nevertheless been moderately profitable for many years.

B. Even though OLEX could consolidate all its refining at the Tasberg plant, doing so at the Grenville plant would not be feasible.

C. The Tasberg refinery is more favorably situated than the Grenville refinery with respect to the major supply routes for raw petroleum.

D. If the Grenville refinery were ever closed and operations at the Tasberg refinery expanded, job openings at Tasberg would to the extent possible be filled with people formerly employed at Grenville.

E. Closure of the Grenville refinery would mean compliance, at enormous cost, with demanding local codes regulating the cleanup of abandoned industrial sites.


My take is option E.The reason being that the Greenvile refinery wanted to save the huge compliance cost and hence they did not shut down the Grenville refinery and not for social concerns.

Please confirm whether I am right /wrong?
The OLEX Petroleum Company has recently determined that it could cut its refining costs by closing its Grenville refinery and consolidating all refining at its Tasberg refinery. Closing the Grenville refinery, however, would mean the immediate loss of about 1,200 jobs in the Grenville area. Eventually the lives of more than 10,000 people would be seriously disrupted. Therefore, OLEXs decision, announced yesterday, to keep Grenville open shows that at OLEX social concerns sometimes outweigh the desire for higher profits. Which of the following, if true, most seriously undermines the argument given?

A. The Grenville refinery, although it operates at a higher cost than the Tasberg refinery, has nevertheless been moderately profitable for many years.

B. Even though OLEX could consolidate all its refining at the Tasberg plant, doing so at the Grenville plant would not be feasible.

C. The Tasberg refinery is more favorably situated than the Grenville refinery with respect to the major supply routes for raw petroleum.

D. If the Grenville refinery were ever closed and operations at the Tasberg refinery expanded, job openings at Tasberg would to the extent possible be filled with people formerly employed at Grenville.

E. Closure of the Grenville refinery would mean compliance, at enormous cost, with demanding local codes regulating the cleanup of abandoned industrial sites.


is it E..?
F.A. Hayek, who called free will a phantom problem, observed that if we truly had free will, there would be no point in holding people responsible. What are praise and blame, after all, but tools used by people to causally shape the behaviour of others?
What is the assumption underlying Hayeks argument?
OPTIONS

1)Other peoples opinions do not affect peoples exercise of free will.
2)People shape others behaviour using the tools of praise and blame.
3)Only praise and blame work if people fully accept the consequences of their actions.
4)Those who truly want to exercise their free will should not care about other peoples opinions.
5)Holding people responsible for their behaviour is wrong if they are not free to behave as they choose.


My take -C -

1)Other peoples opinions do not affect peoples exercise of free will. - actually a contradiction
2)People shape others behaviour using the tools of praise and blame.
Restatement of fact/premise. Not an assumtion
3)Only praise and blame work if people fully accept the consequences of their actions. - Gives specific reason why blame and praise are used.Correct
4)Those who truly want to exercise their free will should not care about other peoples opinions. - Even if ppl do not care abt other ppl's opinions they are not free to exercise their own will

5)Holding people responsible for their behaviour is wrong if they are not free to behave as they choose. - nothing right or wrong is indicated in the argument.
The number of digital cameras sold in the past year increased dramatically over the number of digital cameras sold in the previous year. The Chief Executive Officer of the corporation that produces Digicam, a popular brand of digital camera, proposes to increase production of Digicam products.

Which of the following statements, if true, would most strengthen the argument that the Chief Executive Officer's plan will NOT work?

(A) As a percentage of digital cameras sold, Digicam ' s market share decreased over the past twelve months.
(B) The lag time between production and shipment of Digicams has decreased during the last twelve months.
(C) Celebrity endorsements have increased Digicam ' s brand recognition, but not awareness of the parent corporation.
(D) Digicam is one of the brands most responsible for the increase in digital camera sales during the last twelve months.
(E) Sales of Digicam decreased during the last twelve months, despite widespread distribution of coupons in stores and newspapers and on the Internet.


Will go with E, since the actual sales decreased. A is a close answer but talking just about market share is not giving any info about the actual sales of digicam.