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# Ann, Bob, Chris, Dana, and Eric are different ages such that

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VP
Joined: 14 May 2006
Posts: 1405
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Ann, Bob, Chris, Dana, and Eric are different ages such that [#permalink]

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14 Jul 2006, 15:11
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100% (05:53) correct 0% (00:00) wrong based on 1 sessions

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Ann, Bob, Chris, Dana, and Eric are different ages such that their average age is 16. Bob is twice as old as Ann was three years ago. Eric is nine years younger than Bob. The sum of Chris and Ann's ages is equal to twice Dana's age. Dana is one year older than Ann. How old is Eric?

A) 13

B) 14

C) 15

D) 22

E) 23
Manager
Joined: 25 May 2006
Posts: 227
Followers: 1

Kudos [?]: 65 [0], given: 0

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14 Jul 2006, 16:29
-A-

A+B+C+D+E=80 -(1)

B=2(A-3)
E=B-9
C+A=2D
D=A+1
----------------
A=A
B=2A-6
C=A+2
D=A+1
E=2A-15

A+2A-6+A+2+A+1+2A-15=80
A=14
E=13
_________________

Who is John Galt?

VP
Joined: 14 May 2006
Posts: 1405
Followers: 5

Kudos [?]: 187 [0], given: 0

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22 Jul 2006, 20:07
OA is A... spent 5 min on this sucker
22 Jul 2006, 20:07
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# Ann, Bob, Chris, Dana, and Eric are different ages such that

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