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If the average (arithmetic mean) of five consecutive negative integers

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Director
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If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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New post 28 Sep 2009, 19:31
00:00
A
B
C
D
E

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  35% (medium)

Question Stats:

83% (00:37) correct 17% (01:26) wrong based on 19 sessions

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If the average (arithmetic mean) of five consecutive negative integers is 2k – 1, what is the difference between the greatest and least of the five integers?
A)4
B)3
C)2
D)1
E)cannot be determined
[Reveal] Spoiler: OA

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Manager
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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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New post 28 Sep 2009, 23:09
tejal777 wrote:
If the average (arithmetic mean) of five consecutive negative integers is 2k – 1, what is the difference between the greatest and least of the five integers?


Do we need to know the Average is even or odd to find the range of these 5 neg consecutives?

And Even the five are neg or not, the range is always 4.

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Manager
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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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New post 29 Sep 2009, 11:49
numbers will be 2k-3, 2k-2, 2k-1, 2k, 2k+1
range = 2k+1 - 2k+3 = 4

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Director
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Location: Kolkata,India
Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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New post 29 Sep 2009, 21:13
Def. sleep deprived when I was doing the question :shock:
Sorry got thrown off by the negative integer thing..
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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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New post 18 May 2011, 00:00
5 consecutive numbers means difference between first and the last integer = 4
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Re: If the average (arithmetic mean) of five consecutive negative integers   [#permalink] 18 May 2011, 00:00
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If the average (arithmetic mean) of five consecutive negative integers

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