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What is the value of p^r?

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What is the value of p^r?  [#permalink]

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New post 19 Nov 2017, 10:03
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

79% (00:26) correct 21% (00:44) wrong based on 80 sessions

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What is the value of p^r?  [#permalink]

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New post 19 Nov 2017, 10:07
Bunuel wrote:
What is the value of p^r?

(1) p = 1

(2) r = 1


Statement 1: \(p=1\). \(1\) raised to any power will yield \(1\). hence \(p^r=1\). Sufficient

Statement 2: nothing mentioned about \(p\). Insufficient

Option A
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Re: What is the value of p^r?  [#permalink]

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New post 19 Nov 2017, 10:22
Straight A
anything to the power of 1 is 1 ( even 0)
so statement 1 is sufficient
statement 2 is insufficient because p can be anything . p can be 0,1,2,5,-1 ... etc the entire number line hence insufficient.
Answer should be A
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Re: What is the value of p^r?  [#permalink]

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New post 19 Nov 2017, 13:44
Bunuel wrote:
What is the value of p^r?

(1) p = 1

(2) r = 1

Straight A.
1 when raised to the power of anything, which includes positive, negative, fractions and zero, results to a value of 1.


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Kabir
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Re: What is the value of p^r? &nbs [#permalink] 19 Nov 2017, 13:44
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