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Senior | Next Rank: 100 Posts
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by preciousrain7 » Tue Jan 15, 2008 3:36 pm
If r is represented by the decimal 0.t5, what is the digit t ?
(1) r < 1/3
(2) r < 1/10

THANKS PPL!!
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Source: — Data Sufficiency |
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by cris » Tue Jan 15, 2008 5:02 pm
I think is D.

In both cases you could say t=0

Correct me if I am wrong.
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by jacksonlong » Tue Jan 15, 2008 5:08 pm
Statement 1: r<1/3

t could be 0,1,2 and still satisfy this equation. Insufficient.

Statement 2: r<1/10 (.1)

t can only be 0 to satisfy this equation. Sufficient.

Answer is B.
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by preciousrain7 » Tue Jan 15, 2008 5:12 pm
jacksonlong wrote:Statement 1: r<1/3

t could be 0,1,2 and still satisfy this equation. Insufficient.

Statement 2: r<1/10 (.1)

t can only be 0 to satisfy this equation. Sufficient.

Answer is B.
Ahh I see! B is the official ans! THANKS!!!
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by cris » Tue Jan 15, 2008 5:24 pm
It is B.

For statement 1 instead of 1/3 I copied 1/13...that was 0.07...

Another thing to keep in mind is to copy the numbers correctly! :D
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