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# Today Rose is twice as old as Sam and Sam is 3 years younger

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Today Rose is twice as old as Sam and Sam is 3 years younger [#permalink]

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16 Apr 2006, 18:38
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Today Rose is twice as old as Sam and Sam is 3 years younger than Tina. If Rose, Sam, and Tina are all alive 4 years from today, which of the following must be true on that day?

I. Rose is twice as old as Sam.
II. Sam is 3 years younger than Tina.
III. Rose is older than Tina.
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16 Apr 2006, 21:14
Another vote for II.

The differnce in ages remain the same even if you roll back or advance the time frame.
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17 Apr 2006, 09:42
II it is!
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answer: [#permalink]

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17 Apr 2006, 13:36
The answer will be both II and III

III because - lets say that sam is 5 yrs today; rose must be 10 yr today with tina's current age being 8 yrs. 4 yrs down their ages will be sam 9, rose 14 and tina 12. therefore rose will be oldeer than tina (as she is today).

Picking Numbers!!!
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17 Apr 2006, 14:24
But III wont' work if Sam is 2 years old now.

Now
S=2
R=4
T=5

+4 years
S= 6
R=8
T=9
T<R
17 Apr 2006, 14:24
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# Today Rose is twice as old as Sam and Sam is 3 years younger

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