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# The numeric working memory of young orangutans are astonishing

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The numeric working memory of young orangutans are astonishing  [#permalink]

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09 May 2018, 02:05
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45% (medium)

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53% (01:11) correct 47% (01:15) wrong based on 247 sessions

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The numeric working memory of young orangutans are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares, a numerically schooled young orangutan will touch the squares sequentially to indicate the ascending order of the numbers hidden beneath.

(A) are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

(B) are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares,

(C) are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

(D) is astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

(E) is astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

https://www.nytimes.com/2018/02/05/science/animals-count-numbers.html

The numeric working memory of young chimpanzees is astonishing: Flash a random scattering of numerals on a screen for just 210 milliseconds — half an eye blink — and then cover the numbers with white squares, and a numerically schooled young chimpanzee will touch the squares sequentially to indicate the ascending order of the numbers hidden beneath.

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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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09 May 2018, 02:12
Memory - singular ~ is
Flashing // covering ~ describe action indicate

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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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09 May 2018, 03:12
1
Bunuel wrote:
The numeric working memory of young orangutans are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares, a numerically schooled young orangutan will touch the squares sequentially to indicate the ascending order of the numbers hidden beneath.

A. are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

B. are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares,

C. are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

D. is astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

E. is astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

Subject "The numeric working memory" is singular, so we need a singular verb "is". A, B, and C are out.

We need a complete clause after comma + and, but in E we have an adverbial phrase after "and". E is out.

D is correct.

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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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10 May 2018, 03:56
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I disagree with the previous posters. The choice is between D and E but I think E is the correct choice.

Quote:
D. is astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

the sentence continues with "a numerically schooled young orangutan". Therefore, it seems as if the young orangutan would flash the numerals and cover the numbers. This isn't the case to my understanding because a human will conduct these tasks. Hence, D is incorrect.

Quote:
E. is astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

This might look weird on the first look but it isn't. I think that the author directly speaks to the reader. It is a direct request to the reader. If we keep this in mind it all make sense. If we add "you" to the beginning of the answer choice it would look like this:

"[...] is astonishing: You flash a random scattering of numerals on a screen for half a second then cover the numbers with white squares and a numerically schooled young orangutan will touch the squares sequentially to indicate the ascending order of the numbers hidden beneath"

Let me know what you think
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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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11 May 2018, 06:40
The young orangutan is not doing the action of FLASHING and COVERING.Hence D is incorrect.

As mentioned above
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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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11 May 2018, 07:48
E is the right answer. The orangutan will not be flashing the numerals and covering the numbers. somebody else will.
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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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14 May 2018, 02:41
1
Bunuel wrote:
The numeric working memory of young orangutans are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares, a numerically schooled young orangutan will touch the squares sequentially to indicate the ascending order of the numbers hidden beneath.

A. are astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

B. are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares,

C. are astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

D. is astonishing: flashing a random scattering of numerals on a screen for half a second and then covering the numbers with white squares,

E. is astonishing: flash a random scattering of numerals on a screen for half a second and then cover the numbers with white squares, and

VERITAS PREP OFFICIAL SOLUTION:

Anytime you see a clear subject-verb agreement decision point in the answer choices – here the choice between “are” and “is” – start by analyzing that. Using slash-and-burn to get rid of modifiers, you see the core sentence is really: The memory…IS or ARE…astonishing. Clearly, it must be “is” so you can confidently eliminate (A), (B), and (C) because of that subject-verb agreement error with “are.”

The only remaining differences between (D) and (E) are the choices of “flashing…and covering” vs. “flash and cover” and the use of “and” at the end. To see which is correct, read the core elements and consider meaning: for (D) without the “and” at the end, “flashing…and covering…” are then participial phrases modifying orangutans…but that makes no sense! The orangutans are not both setting up the experiment and then indicating the ascending order in the experiment.

Only (E) with the use of the imperative verbs “flash” and “cover” and the word “and” creates a logical meaning for how the experiment works: [you] FLASH the numerals and then COVER the numbers, AND a young orangutan will be able to indicate… The correct answer is (E).
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Re: The numeric working memory of young orangutans are astonishing  [#permalink]

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24 Jun 2019, 16:03
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Re: The numeric working memory of young orangutans are astonishing   [#permalink] 24 Jun 2019, 16:03
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