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If the distances between two consecutive points are the same, what is

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Math Revolution GMAT Instructor
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If the distances between two consecutive points are the same, what is  [#permalink]

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New post 12 Apr 2017, 01:17
1
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A
B
C
D
E

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If the distances between two consecutive points are the same, what is the value of A in terms of x and y?

A. 3y-2x
B. 3x-2y
C. 2x-3y
D. 2y-3x
E. 3y+2x

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Re: If the distances between two consecutive points are the same, what is  [#permalink]

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New post 12 Apr 2017, 03:14
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Let x = 1 and y = 2 --> A = 4

Substitute the value of x and y in the options.

A. 3y-2x = 3(2) - 2(1) = 4. Correct
B. 3x-2y = 3(1) - 2(2) = -1. Eliminate
C. 2x-3y = 2(1) - 3(2) = -4. Eliminate
D. 2y-3x = 2(2) - 3(1) = 1. Eliminate
E. 3y+2x = 3(2) + 2(1) = 8. Eliminate.

Answer: A
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Re: If the distances between two consecutive points are the same, what is  [#permalink]

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New post 14 Apr 2017, 07:35
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==> The distance between 2 consecutive points=d, hence d=y-x and A=y+2d=y+2(y-x)=3y-2x.

The answer is A.
Answer: A
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Re: If the distances between two consecutive points are the same, what is  [#permalink]

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New post 10 Sep 2018, 04:28
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Re: If the distances between two consecutive points are the same, what is &nbs [#permalink] 10 Sep 2018, 04:28
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