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Intern
Intern
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Joined: 20 Aug 2010
Posts: 41
Followers: 1

Kudos [?]: 12 [0], given: 0

Weighted average [#permalink] New post 26 Nov 2011, 02:31
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

50% (01:37) correct 50% (00:41) wrong based on 8 sessions
A group of Men & Women
Average weight of W = 120
1.Aver weight of M = 150
2.Aver weight of the group was twice as far from Average weight of W than from Aver weight of M
[Reveal] Spoiler: OA
Intern
Intern
avatar
Joined: 11 Nov 2011
Posts: 18
Followers: 0

Kudos [?]: 17 [0], given: 4

Re: Weighted average [#permalink] New post 26 Nov 2011, 03:35
I assume the question is asking, what is the average weight of the whole group.

I answered C.

I can't see how you can get the answer from 2. without knowing 1. Can you explain it to me?
Re: Weighted average   [#permalink] 26 Nov 2011, 03:35
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