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The general availability of high-quality electronic scanners

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The general availability of high-quality electronic scanners and color  [#permalink]

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New post 28 Jul 2010, 13:52
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The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.

A questionable assumption of the plan is that

(A) in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years

(B) most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money

(C) the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification

(D) most corporations served by these banks will not have to pay more for the new checks than for traditional checks

(E) the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future

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Re: The general availability of high-quality electronic scanners and color  [#permalink]

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New post 30 Jun 2015, 09:29
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The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such
counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word "VOID" appears on the check.

A questionable assumption of the plan is that :

Conclusion : To void counterfeiting, banks are using small dots which cannot be duplicated accurately by the scanners.

Questionable assumption -> Is any assumption of the argument. So essentially the question is asking for assumptions.


A. in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over
the past few years
We need to find the option which supports the conclusion. This option is giving a general observation which doesn't concern the argument. Whether proportion of checks has remained constant or not is immaterial.

B. most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money
Small amount of money or big sums of money is not the scope of the argument. The Scope of the argument is about counterfeiting the checks.

C. the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification
The argument concerns with the scanners. If suppose dots are visible or not under strong magnification is not context of the argument. The context of the argument is whether scanners can read the reproduce the small dots.

D. most corporations served by these banks will not have to pay more for the new checks than for traditional checks
Cost of the security measure is not in the context of the argument.

E. the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future.
This option says size smallest dot that scanners can read and reproduce is going to remain unchanged and this is the assumption because if this is not the case, the scanners can read and reproduce the small dots and doing so breaks the argument and hence this is the assumption - Correct
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Re: cr general availabilityn 38  [#permalink]

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New post 03 Dec 2011, 02:32
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eybrj2 wrote:
The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word "VOID" appears on the check.

A questionable assumption of the plan is that:

c) The smallest dots on the proposed checks cannot be distinguished visually except under strong magnification.

e) The size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future.



Can anybody explain this question?


When I face this problem, I have strong senses that one of C and E will be the correct answer choice. But when I reasoning by negate technique, the choice C and E will be:

c) The smallest dots on the proposed checks can be distinguished visually (except under strong magnification.) => I do not remember what magnification means, but I can presume that this word's meaning unrelated to the scanner system and that why I eliminate this answer choice.

e) The size of the smallest dots that generally available electronic scanners are able to reproduce accurately will decrease significantly in the near future. => here is the correct answer choice. If the size of dots become smaller, the scanner will not realize (as well as reproduce) these dots whether these checks have these dots or not. So, the plan of using dots to prevent counterfeiting will be not efficient.
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Re: The general availability of high-quality electronic scanners and color  [#permalink]

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New post 30 Mar 2014, 11:38
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"E". They have adopted this process to distinguish the original ones from the counterfeit ones assuming that this process will not be imitated in the near future. However if the forgerers are able to mimic this pattern also then this particular technique would fail to achieve the desired result.
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Re: The general availability of high-quality electronic scanners and color  [#permalink]

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New post 10 Sep 2014, 07:19
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In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available
Whenever we see something like "presently" or "currently available" in the premise, then we should start thinking about an answer which talks about the future or any tech that can be invented so that the same condition does not prevail in the future. Hence (E) stands out from the rest of the options.
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The general availability of high-quality electronic scanners  [#permalink]

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New post 20 Aug 2017, 19:06
kinjiGC wrote:
The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such
counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word "VOID" appears on the check.

A questionable assumption of the plan is that :

Conclusion : To void counterfeiting, banks are using small dots which cannot be duplicated accurately by the scanners.

Questionable assumption -> Is any assumption of the argument. So essentially the question is asking for assumptions.


A. in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over
the past few years
We need to find the option which supports the conclusion. This option is giving a general observation which doesn't concern the argument. Whether proportion of checks has remained constant or not is immaterial.

B. most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money
Small amount of money or big sums of money is not the scope of the argument. The Scope of the argument is about counterfeiting the checks.

C. the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification
The argument concerns with the scanners. If suppose dots are visible or not under strong magnification is not context of the argument. The context of the argument is whether scanners can read the reproduce the small dots.

D. most corporations served by these banks will not have to pay more for the new checks than for traditional checks
Cost of the security measure is not in the context of the argument.

E. the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future.
This option says size smallest dot that scanners can read and reproduce is going to remain unchanged and this is the assumption because if this is not the case, the scanners can read and reproduce the small dots and doing so breaks the argument and hence this is the assumption - Correct


I am not clear on this one. Here is my understanding:

We are being asked for a questionable assumption. Is an assumption = questionable assumption? How?

Doesn't a questionable assumption mean an assumption/statement that can be questioned upon / weakness to the conclusion?

If I assume that my understanding is correct, I am able to reach E. But, if we are actually looking for an assumption, then how can E be an assumption?
E says - Size of the smallest dots will not decrease (but we actually want them to decrease further and make the dots small in order to accord to the plan - if it has be an asssumption. Is that not correct? - yes, it is not correct. why would you want to decrease the size of the dots and accord to the plan be able to duplicate the dots and allow counterfeiting? Understood that E is an assumption.)
Question says - the plan is to make the dots soo small that it cannot be reproduced by current scanners.

However, option C says - Smallest dots can be seen by magnification (this acts as a strengthener, not as an assumption though - Is this correct? No, it isn't. To avoid counterfeiting, it can be assumed that these small dots cannot be distinguished/seen in anyway. What I mentioned earlier is a weakener in fact, not strengthener).

Please explain.

Understood after some contemplation. Mistake was:
What did the question say? to avoid counterfeiting, plan is to make the dots smaller so that it cannot be duplicated by the current available scanners
What did I interpret? To avoid counterfeiting, Need to look for an option that makes the dots smaller. [WRONG] Making the dots smaller by currently available scanners will allow counterfeiting (contradictory).

This question still remains: Questionable assumption = Assumption, not weaken. How?
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Re: The general availability of high-quality electronic scanners  [#permalink]

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New post 12 Sep 2017, 22:54
Ans to this question should be C and not E .

Option E says :
the size of the smallest dots that generally available electronic scanners are able to reproduce
accurately will not decrease significantly in the near future

Its talk about the accuracy of the scanner that available in the market at present . Future scope is the size will not be decrease to gaze the correct size of the smallest dot .

But in the argument it is given that size of the dot is decreased . Hence it is not possible for the scanner currently available in the market to spot it and produce fake checks .

Hence E is wrong .

Lets check C
the smallest dots on the proposed checks cannot be distinguished visually except under
strong magnification

Under the naked eye it not possible to check but under strong magnification . It is possible to check the dots .
Hence idea of introducing new Check will not meet the proposed plan .

Hence C is correct ans .

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Re: The general availability of high-quality electronic scanners  [#permalink]

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New post 04 Jun 2018, 02:49
The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.

Conclusion - The new checks with smaller dots will be able to deter the counterfeiting of checks. (it is not a very short term plan)
What are we looking for - Something which is must for the conclusion to be true. Note - with the current tech. - printers and scanners if used to print new checks will print them with VOID. Passage doesn't talk about any technological advancements.

A questionable assumption of the plan is that

(A) in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years
-- Irrelevant.

(B) most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money
-- Irrelevant

(C) the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification
-- Irrelevant- Question is not - whether we can distinguish by looking or not.

(D) most corporations served by these banks will not have to pay more for the new checks than for traditional checks
-- Again , we are not concerned about corporations have to pay.

(E) the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future
-- Inline with our thinking. Must be true for the conclusion to be true. This is the correct answer.
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Re: Assumption  [#permalink]

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New post 21 Oct 2018, 02:15
sonusaini1 wrote:
The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.

A questionable assumption of the plan is that

A in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years
B most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money
C the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification
D most corporations served by these banks will not have to pay more for the new checks than for traditional checks
E the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future


Let's break down our passage.
1. printers/scanners make faking checks easier
2. to deter fakes, banks will issue small-dot checks
3. scanning/printing small-dot checks doesn't work

We're asked to identify an assumption of the plan, and as the logic given in the passage is extremely clear, we'll first try to infer it and only then look to the answers.
This is a Precise approach.

In particular, there are 2 main claims. The first is that the small-dot checks will deter fakes. This assumes that, currently, fakes are created by scanning and subsequently printing existing checks, which is nowhere mentioned in the passage and is therefore a likely answer. The other main claim is that today's printers are technically unable to scan and print the 'small-dot' checks. For this to be relevant, we need to assume that tomorrow's printers won't be significantly better than today's.

Looking over our answers, (E) is equivalent to the second assumption we identified and is our best answer.
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Re: Assumption &nbs [#permalink] 21 Oct 2018, 02:15
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