If the average (arithmetic mean) of five consecutive negative integers : GMAT Problem Solving (PS)
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If the average (arithmetic mean) of five consecutive negative integers

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

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28 Sep 2009, 18:31
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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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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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28 Sep 2009, 22:09
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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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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29 Sep 2009, 10:49
numbers will be 2k-3, 2k-2, 2k-1, 2k, 2k+1
range = 2k+1 - 2k+3 = 4
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Re: If the average (arithmetic mean) of five consecutive negative integers [#permalink]

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29 Sep 2009, 20:13
Def. sleep deprived when I was doing the question
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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17 May 2011, 23:00
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] 17 May 2011, 23:00
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