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Re: Two-dimensional bar codes are omni-directional; that is, unlike one-di [#permalink]
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Bunuel wrote:
Two-dimensional bar codes are omni-directional; that is, unlike one-dimensional bar codes, they can be scanned from any direction. Additionally, two-dimensional bar codes are smaller and can store more data than their one-dimensional counterparts. Despite such advantages, two-dimensional bar codes account for a much smaller portion of total bar code usage than one-dimensional bar codes.

Which of the following, if true, most helps to resolve the apparent paradox?


(A) Many smaller stores do not use bar codes at all because of the expense.

(B) For some products, the amount of data necessary to be coded is small enough to fit fully on a one-dimensional bar code.

(C) Two-dimensional bar codes are, on average, less expensive than one-dimensional bar codes.

(D) Two-dimensional bar codes can also be scanned by consumer devices, such as cell phones.

(E) One-dimensional bar codes last longer and are less prone to error than two-dimensional bar codes.

This is a CR Butler Question




OFFICIAL EXPLANATION



(A) Many smaller stores do not use bar codes at all because of the expense.

    This choice makes an Irrelevant Distinction. The argument talks about stores that do use bar codes, not stores that don't.

(B) For some products, the amount of data necessary to be coded is small enough to fit fully on a one-dimensional bar code.

    This one is very tempting, but it's also a One Word Off trap. The choice addresses only “some" products— not enough to affect the conclusion.

(C) Two-dimensional bar codes are, on average, less expensive than one-dimensional bar codes.

    This is a Reverse Logic trap. I f this choice were true, it would make the discrepancy even more strange, because it offers another reason why people would want to use 2D bar codes.

(D) Two-dimensional bar codes can also be scanned by consumer devices, such as cell phones.

    This can be considered a Reverse Logic trap (because it makes 2D bar codes more attractive) or a No Tie to the conclusion trap (because scanning with consumer devices isn't part o f the scope o f the argument).

(E) One-dimensional bar codes last longer and are less prone to error than two-dimensional bar codes.

    This is the correct answer
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Re: Two-dimensional bar codes are omni-directional; that is, unlike one-di [#permalink]
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Re: Two-dimensional bar codes are omni-directional; that is, unlike one-di [#permalink]
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