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Senior Manager

Joined: 30 May 2005

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poll [#permalink]

13 Jun 2005, 16:13

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

Joined: 30 May 2005

Posts: 287

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

[#permalink]

13 Jun 2005, 16:36

thanks!

Senior Manager

Joined: 30 May 2005

Posts: 287

Followers: 1

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

[#permalink]

13 Jun 2005, 16:37

thanks!

[#permalink] 13 Jun 2005, 16:37

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