CR Set 25 doubt

[gmatrock]

In two months, the legal minimum wage in the country of Kirlandia will increase
from five Kirlandic dollars(KD5.00) Per hour to KD5.50 per hour. Opponents of
this increase have argued that the resulting rise in wages will drive the inflation
rate up. In fact its impact on wages will probably be negligible, since only a
very small proportion of all Kirfandic workers are currently receiving less than
KD5.50 per hour.
Which of the following, if true, most seriously weakens the argument?
A. Most people in kirlandia who are currently earning the minimum wage have
been employed at their current jobs for less than a year.
B. Some firms in Kirlandia have paid workers considerably less than KD5.00
per hour, in violation of kirlandic employment regulations.
C. Many businesses hire trainees at or near the minimum wage but must
reward trained workers by keeping their paylevels above the pay level
of trainees.
D. The greatest growth in Kirlandia’s economy in recent years has been in
those sectors where workers earn wages that tend to be much higher
than the minimum wage.
E The current minimum wage is insufficient for a worker holding only one job
to earn enough to support a family ,even when working full time at that job.

[gmatrock]

one more...

Springfield Fire Commissioner: the vast majority of false fire alarms
are prank calls made anonymously from fire alarm boxes on street
corners. Since virtually everyone has access to a private telephone,
these alarm boxes have outlived their usefulness. Therefore, we
propose to remove the boxes. Removing the boxes will reduce the
number of prank calls without hampering people’s ability to report a fire.
Which of the following, if true, most strongly supports the claim that the
proposal, if carried out, will have the announced effect?
A. The fire department traces all alarm calls made from private telephones
and records where they came from.
B. Maintaining the fire alarm boxes costs Springfield approximately
five million dollars annually.
C. A telephone call can provide the fire department with more information
about the nature and size of a fire than can an alarm placed
from an alarm box.
D. Responding to false alarms significantly reduces the fire department’s
capacity for responding to fires.
E. On any given day, a significant percentage of the public telephones
in Springfield are out of service.

[gmatrock]

last one...

Q36
The chemical adenosine is released by brain cells when those cells are active.
Adenosine then binds to more and more sites on cells in certain areas of the
brain, as the total amount released gradually increases during wakefulness.
During sleep, the number of sites to which adenosine is bound decreases. Some
researchers have hypothesized that it is the cumulative binding of adenosine to a
large number of sites that causes the onset of sleep.
Which of the following, if true, provides the most support for the researchers’
hypothesis?
A. Even after long periods of sleep when adenosine is at its lowest concentration
in the brain, the number of brain cells bound with adenosine remains
very large.
B. Caffeine, which has the effect of making people remain wakeful, is known to
interfere with the binding of adenosine to sites on brain cells.
C. Besides binding to sites in the brain, adenosine is known to be involved in
biochemical reactions throughout the body.
D. Some areas of the brain that are relatively inactive nonetheless release
some adenosine.
E. Stress resulting from a dangerous situation can preserve wakefulness even
when brain levels of bound adenosine are high.

OAs after discussion

[givemeanid]

gmatrock, post 1 critical reasoning per thread. It keeps the discussion focussed. Also, if you can increase the font size while posting, it will be easier to read your posts.

[gmatrock]

lets discuss only the 1st one here.
i have moved other two.

[vjman999]

1.c
2.a
3.a

[saira]

for the first one , i think it should be "E".
what is the OA for that ?

[LegoLife]

My answer is C.

Argument : Rise in minimum wage will cause inflation - Opponents.

Author : Rise in minimum wage will have negligible impact because only a small proportion of the workers are paid less than the minimum wage right now.

Weaken : We need to find a reason that supports the Opponents claim that the increase will indeed create a big impact.

How : If the increase in wage is tied up with several other considerations as mentioned in Choice C, then the wages should shoot up in many businesses.
Hence, weakens the authors argument.

[kikipooh]

Why is A incorrect? If most people are currently less than the minimum wage and were hired within a year, would the wage increase cause a higher inflation than B? I did some research some people says B and some says C. B only says some firms, not most firms? How can it weaken the argument?Any comments?

imo answer is C.

A. Most people in kirlandia who are currently earning the minimum wage have
been employed at their current jobs for less than a year.
this is irrelevant

B. Some firms in Kirlandia have paid workers considerably less than KD5.00
per hour, in violation of kirlandic employment regulations.
This if anything, would support the argument

C. Many businesses hire trainees at or near the minimum wage but must
reward trained workers by keeping their paylevels above the pay level
of trainees.
This makes sense, rise in minimum wages would up the pay threshold of trained workers

D. The greatest growth in Kirlandia’s economy in recent years has been in
those sectors where workers earn wages that tend to be much higher
than the minimum wage.
This supports the argument

E The current minimum wage is insufficient for a worker holding only one job
to earn enough to support a family ,even when working full time at that job.
Irrelevant