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700 plus level question

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Manager
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Joined: 07 Dec 2010
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Concentration: Marketing, General Management
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700 plus level question [#permalink] New post 10 Aug 2011, 21:42
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

57% (02:06) correct 43% (00:59) wrong based on 41 sessions
Jane started baby-sitting when she was 18 years old. Whenever she baby-sat
for a child, that child was no more than half her age at the time. Jane is currently
32 years old, and she stopped baby-sitting 10 years ago. What is the
current age of the oldest person for whom Jane could have baby-sat?

21
22
23
24
25
[Reveal] Spoiler: OA
Director
Director
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Joined: 24 Jul 2011
Posts: 787
GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Followers: 99

Kudos [?]: 409 [0], given: 15

Re: 700 plus level question [#permalink] New post 10 Aug 2011, 23:08
Current age of oldest child for whom Jane baby sat = Child for whom she baby-sat when she was 18 = 9 + 14 = 23

(C).
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Re: 700 plus level question [#permalink] New post 11 Aug 2011, 00:22
Director
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Re: 700 plus level question [#permalink] New post 21 Aug 2011, 13:49
Jane 18 22 32

Babies <=9

oldest baby = 9 year old baby that she could have baby sat when she was 18.

oldest baby's current age = 9+14 (as its been 14 years since she sat that baby) = 23
Re: 700 plus level question   [#permalink] 21 Aug 2011, 13:49
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