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Data Suff from gmetprep

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Data Suff from gmetprep [#permalink]

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New post 07 Oct 2008, 11:38
ds

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Re: Data Suff from gmetprep [#permalink]

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New post 07 Oct 2008, 12:33
1
spiridon wrote:
ds

find the value of a.

(1) p(2) = 100
=> p(2) = (-10)^2 or (10)^2; a can be 10 or -10 Hence Insuff.

(2) p(3)- -1000
=>p(3) = (-10)^3; a is -10 and hence Suff.

I will go with (B).
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Re: Data Suff from gmetprep [#permalink]

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New post 08 Oct 2008, 01:56
B should be the answer.
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Re: Data Suff from gmetprep [#permalink]

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New post 08 Oct 2008, 02:10
spiridon wrote:
ds


Stem 1- Insuff, as we sould not know whether a is +10 or -10

Stem 2- Suff, cleraly value of a is -10. hence "B"

What is OA
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Re: Data Suff from gmetprep [#permalink]

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New post 08 Oct 2008, 02:34
Hi,

from 1 --> a=-10 or a=10 --> not suff.

from 2 --> a=-10 suff.

Therefore, B

OA?

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Re: Data Suff from gmetprep   [#permalink] 08 Oct 2008, 02:34
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