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# In a sequence of integers, v, w, x, y, and z, the value of each intege

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Math Expert
Joined: 02 Sep 2009
Posts: 59725
In a sequence of integers, v, w, x, y, and z, the value of each intege  [#permalink]

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18 Mar 2019, 00:08
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5% (low)

Question Stats:

89% (01:42) correct 11% (02:28) wrong based on 28 sessions

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In a sequence of integers, v, w, x, y, and z, the value of each integer except the first is equal to two more than the product of the previous integer and 2. If z equals 14, what is the value of w?

A. -1
B. 0
C. 2
D. 6
E. 14

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In a sequence of integers, v, w, x, y, and z, the value of each intege  [#permalink]

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18 Mar 2019, 00:26
1
since z=14, then z=2y+2 by which we get value of y as 6,
similarly y=2x+2 => value of x is 2
now x=2w+2 => value of w is 0
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Re: In a sequence of integers, v, w, x, y, and z, the value of each intege  [#permalink]

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18 Mar 2019, 01:08
Bunuel wrote:
In a sequence of integers, v, w, x, y, and z, the value of each integer except the first is equal to two more than the product of the previous integer and 2. If z equals 14, what is the value of w?

A. -1
B. 0
C. 2
D. 6
E. 14

given info
w=2+2v
x=2+2w
y=2+2x
z=2+2y
z=14
so
y=6,x=2,w=0
IMO B
Re: In a sequence of integers, v, w, x, y, and z, the value of each intege   [#permalink] 18 Mar 2019, 01:08
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