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Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,}

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Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink] New post   16 May 2019, 16:35
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Set A = {–2, –1, 0, 1, 2}

Set B = {–4, –2, 0, 2, 4,}

Quantity A
Quantity B
The sum of the product of each element in A with each element in B
0


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
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C
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B
MyGuruStefan
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Re: Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink] New post   17 May 2019, 09:49
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Quote:
Set A = {–2, –1, 0, 1, 2}

Set B = {–4, –2, 0, 2, 4,}

Quantity A
Quantity B
The sum of the product of each element in A with each element in B
0


With Quantitative Comparisons, always think logically before fully calculating.

Note that the terms of Set A include 0. Anything x 0 will equal 0. Therefore, the product of each element in A = 0

Now, note in Set B, that there is an arithmetic sequence where the median = 0. Each of the positive values cancel with their equivalent negative value. -4 + 4 = 0. -2 + 2 = 0. Therefore the sum of the values in Set B also = 0

0 + 0 = 0. Thus, the quantities are equal. Select Choice C.
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Re: Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink] New post   18 May 2019, 02:23
The question is very confusingly written
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Re: Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink] New post   19 May 2019, 11:03
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aloksharma911 wrote:
The question is very confusingly written

This could be said for all GRE questions haha!


This is why it is so important to read carefully and work through the question methodically once, rather than rushing and risking the chance of misreading or miscalculating. Until you reach 160+ on each section, if not 165+, the primary goal should be to eliminate simple errors rather than worrying about getting the most difficult questions correct.
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Re: Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink] New post   19 May 2019, 15:59
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I think tricky or to interpret the question should be more appropriate to use.

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Re: Set A = {–2, –1, 0, 1, 2} Set B = {–4, –2, 0, 2, 4,} [#permalink]
19 May 2019, 15:59
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