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Senior Manager
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Joined: 30 May 2005
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GMAT Tests User
poll [#permalink] New post 13 Jun 2005, 15:13
.
:) hello

is my approach right ? Thanks

the sum of income is 25000 x 10 or 250000
And
6 x 30000+4X= 250000
and I solved for x
A poll reveals that the average (arithmetic mean) income of 10 households is $25,000. If 6 of the households have incomes of $30,000 each, what is the average income of the other 4 households?
(A) $21,500
(B) $20,000
(C) $17,500
(D) $7,500
(E) $7,000
Senior Manager
Senior Manager
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Joined: 30 May 2005
Posts: 283
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 [#permalink] New post 13 Jun 2005, 15:36
thanks! :)
Senior Manager
Senior Manager
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Joined: 30 May 2005
Posts: 283
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Kudos [?]: 3 [0], given: 0

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 [#permalink] New post 13 Jun 2005, 15:37
thanks! :)
  [#permalink] 13 Jun 2005, 15:37
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