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Last year the worldwide paper industry used over twice as much fresh

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Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post Updated on: 08 Nov 2018, 02:49
2
24
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

61% (01:40) correct 39% (01:55) wrong based on 1250 sessions

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Last year the worldwide paper industry used over twice as much fresh pulp (pulp made directly from raw plant fibers) as recycled pulp (pulp made from wastepaper). A paper industry analyst has projected that by 2010 the industry will use at least as much recycled pulp annually as it does fresh pulp, while using a greater quantity of fresh pulp than it did last year.

If the information above is correct and the analyst's projections prove to be accurate, which of the following projections must also be accurate.


A. In 2010 the paper industry will use at least twice as much recycled pulp as it did last year

B. In 2010 the paper industry will use at least twice as much total pulp as it did last year.

C. In 2010 the paper industry will produce more paper from a given amount of pulp than it did last year.

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp.

E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp.

Originally posted by jgomey on 22 Jan 2013, 17:16.
Last edited by Bunuel on 08 Nov 2018, 02:49, edited 3 times in total.
Renamed the topic and edited the question.
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 22 Jan 2013, 19:28
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jgomey wrote:
Last year the worldwide paper industry used over twice as much fresh pulp (pulp made directly from raw plant fibers) as recycled pulp (pulp made from wastepaper). A paper industry analyst has projected that by 2010 the industry will use at least as much recycled pulp annually as it does fresh pulp, while using a greater quantity of fresh pulp than it did last year.

If the information above is correct and the analyst's projections prove to be accurate, which of the following projections must also be accurate.

A. In 2010 the paper industry will use at least twice as much recycled pulp as it did last year

B. In 2010 the paper industry will use at least twice as much total pulp as it did last year.

C. In 2010 the paper industry will produce more paper from a given amount of pulp than it did last year.

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp.

E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp.


Lets discuss it first


Hi,

Let's use numbers to understand the passage.

Last year,
Recycled Pulp used: 100 units
Fresh Pulp used: more than 200 units. For our discussion, let's take it to be 210.

In 2010,
Fresh Pulp used: 220 (greater than last year)
Recycled Pulp: more than 220 (at least equal to fresh pulp in 2010)

So, as we can see, clearly option A is the answer choice.

Choice B does not hold in the numbers we used.

Hope this helps :)

Let me know in case any clarification is required.

-Chiranjeev
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 22 Jan 2013, 19:57
1
jgomey wrote:
Last year the worldwide paper industry used over twice as much fresh pulp (pulp made directly from raw plant fibers) as recycled pulp (pulp made from wastepaper). A paper industry analyst has projected that by 2010 the industry will use at least as much recycled pulp annually as it does fresh pulp, while using a greater quantity of fresh pulp than it did last year.

If the information above is correct and the analyst's projections prove to be accurate, which of the following projections must also be accurate.

A. In 2010 the paper industry will use at least twice as much recycled pulp as it did last year

B. In 2010 the paper industry will use at least twice as much total pulp as it did last year.

C. In 2010 the paper industry will produce more paper from a given amount of pulp than it did last year.

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp.

E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp.


Lets discuss it first


IMO: A.

Last year, amount of fresh pulp is twice that of recycled pulp.
Company says that it will use recycled pulp in the same amount as that of fresh pulp.
Company is not reducing amount of fresh pulp used.So to comply with the above condition, company needs to double the usage of recycled pulp at least.

For example,
Given, Last year, Company used
Recycled pulp used= 1 K tons (Lets' say)
Fresh pulp used =>2 K tons.

In 2010, Company will use at least as much recycled pulp annually as it does fresh pulp, while using a greater quantity of fresh pulp than it did last year.

So, Keeping the amount of fresh >= 2 K tons, Amount of recycled pulp needs to be at least doubled to reach at the level of fresh pulp.

Only Option A makes sense with this analysis.
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 22 Jan 2013, 21:09
OA is A

This is such a good example of a CR question that requires a little bit of Math.

I thought about this question in terms of proportions:

Current proportion- PULP:RECYCLE = 2:1

Future Proportion- PULP:RECYCLE = 1:1

One additional caveat-the amount of pulp used in the future is more than the current amount used. In summary, The PULP/RECYCLE proportion will be different in the future, and the ACTUAL amount of pulp will increase too.

So the argument presents 3 conditions that need to be satisfied.

1. The current proportion is 2:1
2. The future proportion will be 1:1
3. The future amount of Pulp will be greater than the Current amount of Pulp.

Next I plugged in numbers

Condition 1


PULP=100
RECYCLE=50

100/50= 2/1


Condition 2 and 3


Future

101/101= 1/1

101>100

This satisfies all the conditions presented in the argument.

Clearly Answer Choice A is the Answer
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 22 Feb 2013, 04:24
[quote="jgomey"]Last year the worldwide paper industry used over twice as much fresh pulp (pulp made directly from raw plant fibers) as recycled pulp (pulp made from wastepaper). A paper industry analyst has projected that by 2010 the industry will use at least as much recycled pulp annually as it does fresh pulp, while using a greater quantity of fresh pulp than it did last year.

If the information above is correct and the analyst's projections prove to be accurate, which of the following projections must also be accurate.

A. In 2010 the paper industry will use at least twice as much recycled pulp as it did last year

B. In 2010 the paper industry will use at least twice as much total pulp as it did last year.

C. In 2010 the paper industry will produce more paper from a given amount of pulp than it did last year. OFS

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp.
. OFS. Strong word "only"
E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp.

OFS. Strong word "only".

TO choose between A & B. i assume no.'s as mentioned in above post and got A as IMO
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 13 Sep 2013, 21:24
I got A too, but seriously can't understand the difference between A and D? Both seem to be correct
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 14 Sep 2013, 22:24
1
mahendru1992 wrote:
I got A too, but seriously can't understand the difference between A and D? Both seem to be correct


Hi mahendru

You can eliminate D and E quite quickly because they're out of scope.

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp.
E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp.

The argument only talks about how much fresh pulp and recycled pulp are used to produce paper in general. The argument does not say anything about types of paper such as 100% fresh pulp paper or 50-50 fresh-recycled paper, etc.

Thus, D and E are out.

Hope it helps.
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 16 Jun 2014, 07:23
1
Choices C, D, and E talk about the production of paper, whereas the argument only talks about how paper was made.
We either quickly eliminate those choices, or take a closer look at them later since Choices A and B talk of the premises, directly.

I think with these types of Inference Qs, creating quick variables can be helpful.
I'll tack onto what Nocilis did back in ancient times:

Last Year: FP > 2x RP > x
2010: RP is > or = FP, FP >2x ----------> RP > 2x

2010 RP is at least 2 times greater than Last Year's RP.

Hence, Choice A.
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Re: Last year the worldwide paper industry used over twice as much fresh  [#permalink]

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New post 21 Apr 2018, 23:55
1
easy one, Should be a DS problem :D

Last year: fresh - 100kg, recycle - 50; Total = 150

2010: fresh(101) = recycle, fresh > fresh of last year; total = 202


If the information above is correct and the analyst's projections prove to be accurate, which of the following projections must also be accurate.

A. In 2010 the paper industry will use at least twice as much recycled pulp as it did last year --- this is 50 vs 101 recycled. correct.

B. In 2010 the paper industry will use at least twice as much total pulp as it did last year.--- 150 vs 202 ; wrong

C. In 2010 the paper industry will produce more paper from a given amount of pulp than it did last year. --- i think these two should be equal unless some technological development.

D. As compared with last year, in 2010 the paper industry will make more paper that contains only recycled pulp. --- both will be equal.

E. As compared with last year, in 2010 the paper industry will make less paper that contains only fresh pulp. --- wrong.
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Re: Last year the worldwide paper industry used over twice as much fresh &nbs [#permalink] 21 Apr 2018, 23:55
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