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Last year the worldwide paper industry used over twice as [#permalink]
22 Jan 2013, 17:16

00:00

A

B

C

D

E

Difficulty:

45% (medium)

Question Stats:

51% (02:42) correct
48% (01:45) wrong based on 211 sessions

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.

Re: Last year the worldwide paper industry [#permalink]
22 Jan 2013, 19:28

2

This post received KUDOS

Expert's post

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.

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 [#permalink]
22 Jan 2013, 19:57

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.

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.

Re: Last year the worldwide paper industry [#permalink]
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.

Re: Last year the worldwide paper industry [#permalink]
24 Jan 2013, 05:24

I took 2.5 minutes to get this! It will be easier if we write down numbers.
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Re: Last year the worldwide paper industry used over twice as [#permalink]
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
_________________

Re: Last year the worldwide paper industry used over twice as [#permalink]
12 Sep 2013, 00:03

I believe that we should have risen, not only the sum of the numbers. In addition, the quality of many important. How many marriages are now in production. And it affects the economy. In particular, the use of more tools for quality control, in particular, I use microwave moisture meter, to determine the moisture content data. These must also be taken into account

Re: Last year the worldwide paper industry used over twice as [#permalink]
14 Sep 2013, 22:24

1

This post received KUDOS

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 [#permalink]
15 Sep 2013, 10:09

pqhai wrote:

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.

haha yes now i got it. Such a small point. Thanks! :D

gmatclubot

Re: Last year the worldwide paper industry used over twice as
[#permalink]
15 Sep 2013, 10:09