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Auzbee Rising GMAT Star

Joined: 09 Jul 2007 Posts: 77
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Location: US of A
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Posted: Mon Dec 31, 2007 1:52 am Post subject: Mean/Median DS problem |
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What is the median value of the set R, if for every term in the set, Rn = Rn–1 + 3?
(1) The first term of set R is 15.
(2) The mean of set R is 36. |
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sujaysolanki Really wants to Beat The GMAT!
Joined: 14 Nov 2007 Posts: 212
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Target GMAT Score: 650+
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Posted: Mon Dec 31, 2007 7:17 am Post subject: |
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Evenly distributed terms have mean = median
Like say 1 2 3 4
Mean = 2.5
Median = 2.5
So in this case also 30 33 36 39 etc mean = median .. Hence B
Nice question  |
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Auzbee Rising GMAT Star

Joined: 09 Jul 2007 Posts: 77
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Location: US of A
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Posted: Mon Dec 31, 2007 12:48 pm Post subject: |
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| That's the right answer. |
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