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# If the average of p and 4p is 10, then p =

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Math Expert
Joined: 02 Sep 2009
Posts: 52387
If the average of p and 4p is 10, then p =  [#permalink]

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20 May 2017, 04:57
00:00

Difficulty:

5% (low)

Question Stats:

92% (00:21) correct 8% (00:37) wrong based on 72 sessions

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If the average of p and 4p is 10, then p =

(A) 1
(B) 3
(C) 4
(D) 10
(E) 18

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Re: If the average of p and 4p is 10, then p =  [#permalink]

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20 May 2017, 05:10
Bunuel wrote:
If the average of p and 4p is 10, then p =

(A) 1
(B) 3
(C) 4
(D) 10
(E) 18

(p+4p)/2 = 10
=> 5p = 20
=> p =4

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Joined: 04 Mar 2011
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Re: If the average of p and 4p is 10, then p =  [#permalink]

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19 Apr 2018, 17:03
Bunuel wrote:
If the average of p and 4p is 10, then p =

(A) 1
(B) 3
(C) 4
(D) 10
(E) 18

We can create the equation:

(p + 4p)/2 = 10

5p = 20

p = 4

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Jeffery Miller

GMAT Quant Self-Study Course
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Re: If the average of p and 4p is 10, then p = &nbs [#permalink] 19 Apr 2018, 17:03
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