Of the 5 numbers, the largest number is 4 greater than the

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Of the 5 numbers, the largest number is 4 greater than the [#permalink]

14 Sep 2008, 21:00

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Of the 5 numbers, the largest number is 4 greater than the median. Is the mean greater than the median?

(1) The largest number plus the median is 34.
(2) The median minus the smallest number is 10.

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Re: DS: Mean - Median [#permalink]

14 Sep 2008, 21:39

leonidas wrote:

B

1)
x1 x2 m x4 m+4

we don't know about x1 and x2.. mean can be greater or less than median
insufficient
2)

m-10 x2 m x4 m+4

we will take extreme possibilities for x2 and x4

lowest possible values:
x2= m-10
x4= m

mean = ( m-10+m-10+m+m+m+4) /5 = m-16/5 (i.e mean is < median)

lowest possible values:
x2= m
x4= m+4

mean = ( m-10+m+m+m+4+m+4) /5 = m-2/5 (i.e mean is < median)

sufficient

B
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Re: DS: Mean - Median [#permalink] 14 Sep 2008, 21:39

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Of the 5 numbers, the largest number is 4 greater than the

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Of the 5 numbers, the largest number is 4 greater than the

Of the 5 numbers, the largest number is 4 greater than the

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