It is currently 21 Sep 2017, 14:31

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Each December 31 in Country Q, a tally is made of the

Author Message
TAGS:

### Hide Tags

Intern
Joined: 14 Apr 2010
Posts: 30

Kudos [?]: 26 [0], given: 1

Re: Official LSAC Sample Test Quest Coal Mining and consumption [#permalink]

### Show Tags

03 Feb 2011, 10:18
vinzycoolfire wrote:
good one vineet474.
now it is clear as day.
here is your first kudos...a little encouragement
looking forward to seeing your discussions and explanations in the coming days

You bet !! I have decided to go through every question in CR forum and actively participate in discussions.

Cheers,
-V

Kudos [?]: 26 [0], given: 1

Manager
Joined: 28 Jul 2013
Posts: 86

Kudos [?]: 42 [0], given: 37

Location: India
Concentration: Marketing, Strategy
GPA: 3.62
WE: Engineering (Manufacturing)
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

06 Apr 2015, 19:18
In these type of comparison questions look for an answer choice that shows the difference between two quantities that not similar and may be the cause of the conclusion.

Kudos [?]: 42 [0], given: 37

Verbal Forum Moderator
Status: Getting strong now, I'm so strong now!!!
Affiliations: National Institute of Technology, Durgapur
Joined: 04 Jun 2013
Posts: 572

Kudos [?]: 667 [0], given: 80

Location: India
GPA: 3.32
WE: Information Technology (Computer Software)
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

16 Apr 2015, 22:52
see this question does a good job in repeating similar verbiage in all the answer choices, wasting your time.
I took weel above 2 mins as well

Mined-consumed= available

B , talks about the difference
_________________

Regards,

S

Consider +1 KUDOS if you find this post useful

Kudos [?]: 667 [0], given: 80

Current Student
Joined: 26 Apr 2015
Posts: 131

Kudos [?]: 9 [0], given: 134

Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

25 Jun 2015, 13:54
straight B! Doesn't seem like a 700 level question. More of a mid 600 level.

Kudos [?]: 9 [0], given: 134

Intern
Joined: 24 Oct 2014
Posts: 43

Kudos [?]: 16 [0], given: 17

Location: United States
GMAT 1: 710 Q49 V38
GMAT 2: 760 Q48 V47
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

26 Jun 2015, 09:29
Lets express the argument in terms of equation.

A-Available
M-Mined
C-Consumed

It is given that

A91+ M91 - C91 < A90
M91 - C91 < 0
M91 < C91

Kudos [?]: 16 [0], given: 17

Manager
Status: Manager to Damager!
Affiliations: MBA
Joined: 22 May 2014
Posts: 79

Kudos [?]: 9 [0], given: 286

Location: United States
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

30 Oct 2016, 04:28
It is "could be" question...
The answer choice is a possible scenario. It must not be true!

No where in the argument, the author is saying that the coal mined in 1990 is used in 1991!
If the coal mined in 1990 is not usable due to some reasons, then option B will not be true!
To arrive at answer choice B, you have to assume that the coal produced in 1990 can be used in 1991! Hence this is "could be true" question -- not "must be true question.

We should be wary about such questions.. Such questions create just more confusion to the testers..

Kudos [?]: 9 [0], given: 286

Manager
Joined: 03 Apr 2013
Posts: 241

Kudos [?]: 36 [0], given: 823

Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

23 Jul 2017, 07:25
Please check option B. It is stated as the OA.

The stimulus states that Coal Available = Coal Mined - Coal Consumed

How can more coal be consumed than be mined in the same year?

Other than this option, every other option can be proven wrong. Please check both the question and its OA.

Thanks
_________________

Spread some love..Like = +1 Kudos

Kudos [?]: 36 [0], given: 823

GMAT Club Verbal Expert
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 949

Kudos [?]: 1347 [0], given: 369

Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: 340 Q170 V170
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

30 Jul 2017, 12:10
ShashankDave wrote:
Please check option B. It is stated as the OA.

The stimulus states that Coal Available = Coal Mined - Coal Consumed

How can more coal be consumed than be mined in the same year?

Other than this option, every other option can be proven wrong. Please check both the question and its OA.

Thanks

This is possible because Country Q can have a stockpile of coal leftover from previous years. Perhaps Country Q had a huge supply of coal stored up in 1990. Theoretically, they could then use the coal from that supply in 1991, reducing or eliminating the need to mine for new coal.

The OA (B) is correct.

I hope that helps!
_________________

www.gmatninja.com + GMAT blog + food blog + I'm really bad at PMs

Want expert SC and CR explanations? Check out our verbal Question of the Day! All of them are available here.

Verbal Experts' Topics of the Week:
All Topics of the Week | Ultimate RC Guide for Beginners | Ultimate CR Guide for Beginners | Ultimate SC Guide for Beginners | 7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for \$29.99... in any section order | How to go from great (760) to incredible (780) on GMAT SC | Using LSAT for GMAT CR & RC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

YouTube verbal webinars: "Next-level" GMAT pronouns | Uses of "that" on the GMAT

Kudos [?]: 1347 [0], given: 369

Senior Manager
Joined: 04 Sep 2015
Posts: 479

Kudos [?]: 72 [0], given: 18

Location: India
WE: Information Technology (Computer Software)
Re: Each December 31 in Country Q, a tally is made of the [#permalink]

### Show Tags

08 Aug 2017, 11:20
Each December 31 in Country Q, a tally is made of the country’s total available coal supplies—that is, the total amount of coal that has been mined throughout the country but not consumed. In 1991 that amount was considerably lower than it had been in 1990. Furthermore, Country Q has not imported or exported coal since 1970.

If the statements above are true, which one of the following must also be true on the basis of them?

(A) In Country Q, more coal was mined in 1990 than was mined in 1991.
(B) In Country Q, the amount of coal consumed in 1991 was greater than the amount of coal mined in 1991.
(C) In Country Q, the amount of coal consumed in 1990 was greater than the amount of coal consumed in 1991.
(D) In Country Q, the amount of coal consumed in 1991 was greater than the amount of coal consumed in 1990.
(E) In Country Q, more coal was consumed during the first half of 1991 than was consumed during the first half of 1990.

The coal left without consumption is counted in the end of the year.
This extra coal is then consumed in the next year.

Option B is correct because it says that this years coal left is less than that left last year, this means that the production stays stable but the consumption has increaed because the left out coal is less than the coal left last year so that clearly measn the consumption has increased

Kudos [?]: 72 [0], given: 18

Re: Each December 31 in Country Q, a tally is made of the   [#permalink] 08 Aug 2017, 11:20

Go to page   Previous    1   2   [ 29 posts ]

Similar topics Replies Last post
Similar
Topics:
6 Q31)Linsey has been judged to be a bad songwriter simply 12 19 Jul 2012, 23:37
4 Q. To be accepted as a member at the Brown Country Club, one 12 20 Oct 2016, 05:32
The price of purchasing a car in Country Q is 120 percent 13 05 Jan 2017, 21:44
76 Seven countries signed a treaty binding each of them to 48 26 Jul 2017, 09:55
5 OG12 Q31 5 23 Mar 2016, 19:47
Display posts from previous: Sort by