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That the application of new technology can increase the productivity o

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New post 20 Nov 2013, 06:06
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Re: That the application of new technology can increase the productivity o  [#permalink]

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New post 20 Nov 2013, 14:13
Indeed, D is a very attractive answer choice, but it's a trap to those who didn't get the stem. This is a "must be true" question, in other words, the stimulus contains only facts (accepted as true) and each answer choice will state a conclusion. In answer D, the constant number of miners cannot be taken for granted as the output per miner increased, despite the fact that output remained constant. Therefore, D is not a good answer choice.



tgt7xx wrote:
Can someone tell how to eliminate "D" ?
If any individual Tribnian coal mine has not increased its output per miner in the
past five years, then that mine’s overall output has declined or remained
constant."

This has to be true as number of miners has remained constant...
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Re: That the application of new technology can increase the productivity o  [#permalink]

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New post 21 Nov 2013, 20:34
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Good One;
The passage states that;
Tech leds to increased production leads to 2x coal/ miner than five years ago; no new mines opened.
A. If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia's total coal production has doubled in that period of time.
I guess this exactly concludes the statement that no. of miners are constant hence the technology is effective to increase the proaction / miner to double in five years.

B. Any individual Tribnian coal mine that achieved an increase in overall ouput in the past five years has also experienced an increase in output per miner.- Reverse logic trap; if A is increased and B is unit of A ; so B increased.

C. If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was. Irrelevant comparison

D. If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine's overall output has declined or remained constant. Reverse logic trap; if A is not increased and A has no. of B then B is not increased

E. In Tribnia the cost of producing a given quantity of coal has declined over the past five years. Distraction The price is not discussed in the passage. Sort of out of scope option.


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Explanations with answers please. OA to follow.[/quote]
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New post 03 Jan 2015, 14:02
The last part of argument states that "Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened."

Then why cant C be the conclusion?
It states, C. If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was.

This is a correct one as well right? The technology has doubled the production, which improved prod per miner(PPM). If any new mines had opened, then PPM would have been greater than now...

Please help me explaining about this..
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Re: That the application of new technology can increase the productivity o  [#permalink]

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New post 06 Sep 2017, 13:05
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That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia's coal industry. Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

Which of the following can be properly concluded from the statement about coal output per miner in the passage?

Boil it down - the average coal output per miner, for ALL of tribinia, has doubled over the last 5 years.
that's it.
this means that there could be vast differences between miners; this is only a national average. in particular, it is totally possible that some miners, and some mines, are LESS productive than they were 5 years ago.

...and no new mines have opened.
however, the existing miners could have added, or laid off, miners. there is no information in the passage about the # of workers at each mine.
in fact, there could now be 100 times as many miners as there were before, at every mine.
or 1% as many as before. we have no idea at all.

A. If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia's total coal production has doubled in that period of time.- Correct

B. Any individual Tribnian coal mine that achieved an increase in overall ouput in the past five years has also experienced an increase in output per miner. Incorrect - you can't assume that the NATIONAL trend applies to INDIVIDUAL mines

C. If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was. - Out of scope

D. If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine's overall output has declined or remained constant. - Incorrect

E. In Tribnia the cost of producing a given quantity of coal has declined over the past five years.- Irrelevant - cost of producing is not even discussed

Answer A
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New post 18 Oct 2017, 08:46
buckkitty wrote:
That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia's coal industry. Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

Which of the following can be properly concluded from the statement about coal output per miner in the passage?

(A) If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia's total coal production has doubled in that period of time.

(B) Any individual Tribnian coal mine that achieved an increase in overall ouput in the past five years has also experienced an increase in output per miner.

(C) If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was.

(D) If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine's overall output has declined or remained constant.

(E) In Tribnia the cost of producing a given quantity of coal has declined over the past five years.


Main Point (MP) Questions:

Main Point questions are a variant of Must Be True questions. As you might expect, a Main Point question asks you to find the primary conclusion made by the author.

Identify the conclusion of the argument, and the correct answer choice to these problems will be a rephrasing of the main conclusion of the argument.

Two types of answers often appear in Main Point questions. Both are incorrect:

1. Answers that are true but do not encapsulate the author’s point.
2. Answers that repeat premises of the argument.


Conclusion : That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia's coal industry.

Premise : Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

(A) If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia's total coal production has doubled in that period of time.

Answer : A
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New post 17 Dec 2017, 07:09
buckkitty wrote:
That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia's coal industry. Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

Which of the following can be properly concluded from the statement about coal output per miner in the passage?

(A) If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia's total coal production has doubled in that period of time.

(B) Any individual Tribnian coal mine that achieved an increase in overall ouput in the past five years has also experienced an increase in output per miner.

(C) If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was.

(D) If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine's overall output has declined or remained constant.

(E) In Tribnia the cost of producing a given quantity of coal has declined over the past five years.



A is answer

1 miner ------ x Tonnes ( x tonnes/miner ) 2012
1miner. ------2x Tonnes. (2x tonnes/miner) 2017

Total say 10 miners

Total production -> 10x in 2012 and 20x in 2017 => production is doubled -> A is ans--- no need to go to other options in exam.
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New post 11 Jan 2018, 00:50
question is giving all credit to new technology not to work force or increased in number of mines so
A is the right choice
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New post 29 Apr 2018, 22:36
will anyone be able to tell me what is wrong with option D?
D. If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine's overall output has declined or remained constant.

If the mine's overall output didn't increase...
then the mine's overall output will decline or remain constant...if not this, then what??

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