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From statement 1:

|p-|p|| = 3
or p-|p| = +3 or -3
p-3 = |p| or p+3 = |p|
Solving gives p = 3/2 or -3/2
Insufficient.

From statement 2:

2|p| = 3
|p| = 3/2
or p = 3/2 or -3/2
Insufficient.

Combining both also gives the same result.

E is the answer.
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Bunuel
What is the value of p?

(1) |p – |p|| = 3
(2) 2|p| = 3

(1)Another way to look at it is that |X-Y| means the distance between point (X,0) and point (Y,0) on the x-axis. So, |p-|P||=3 means distance between point p and point |p| is 3, which is only possible if p is negative, for example, the distance between -2 and |-2| is 4 but the distance between 2 and |2| is zero. So, as the distance between p & |p| is 3. p=-3/2 or -1.5 for the distance between p and origin will be half of that between p & |p| and p is established as negative. so, p=-1.5.

Hence, 1 is sufficient.

(2) 2|p|=3 or |p|=3/2, implies p=+3/2 or -3/2.

2 is Insufficient.

Answer A, 1 is sufficient.
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Afc0892
From statement 1:

|p-|p|| = 3
or p-|p| = +3 or -3
p-3 = |p| or p+3 = |p|
Solving gives p = 3/2 or -3/2
Insufficient.

From statement 2:

2|p| = 3
|p| = 3/2
or p = 3/2 or -3/2
Insufficient.

Combining both also gives the same result.

E is the answer.

From statement 1 p must be negative. You can try plugging back in your answers to see that if p = 3/2 then the left-hand side will be 0 and not 3. -3/2 is the only solution and thus statement 1 is sufficient.
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kylebecker9
Afc0892
From statement 1:

|p-|p|| = 3
or p-|p| = +3 or -3
p-3 = |p| or p+3 = |p|
Solving gives p = 3/2 or -3/2
Insufficient.

From statement 2:

2|p| = 3
|p| = 3/2
or p = 3/2 or -3/2
Insufficient.

Combining both also gives the same result.

E is the answer.

From statement 1 p must be negative. You can try plugging back in your answers to see that if p = 3/2 then the left-hand side will be 0 and not 3. -3/2 is the only solution and thus statement 1 is sufficient.

Agree :) . Made a silly mistake
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Bunuel
What is the value of p ?

(1) |p – |p|| = 3
(2) 2|p| = 3

Par of GMAT CLUB'S New Year's Quantitative Challenge Set

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Bunuel
What is the value of p ?

(1) |p – |p|| = 3
(2) 2|p| = 3

What is the value of p ?

(1) |p – |p|| = 3
If p>0; p-|p| =0
If p<0; p-|p| = 2p
p = - 3/2
SUFFICIENT

(2) 2|p| = 3
p = 3/2 or -3/2
NOT SUFFICIENT

IMO A
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thinkvision - any better way to solve this puzzle?
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Bunuel
What is the value of p ?

(1) |p – |p|| = 3
(2) 2|p| = 3

(2) 2|p| = 3: |p|=1.5… p=(1.5,-1.5); insufic.

(1) |p – |p|| = 3: sufic.

p≥0: |p-|p||=3…|p-(p)|=3…|0|=3=invalid;
p<0: |p-|p||=3…|p-(-p)|=3…|p+p|=3…|2p|=3…(p<0)…(-2p)=3…p=-1.5;

Answer (A)
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Chethan92
From statement 1:

|p-|p|| = 3
or p-|p| = +3 or -3
p-3 = |p| or p+3 = |p|
Solving gives p = 3/2 or -3/2
Insufficient.

From statement 2:

2|p| = 3
|p| = 3/2
or p = 3/2 or -3/2
Insufficient.

Combining both also gives the same result.

E is the answer.
Bro , in st1 for p-|p| to be +3 , p>|p| that is never possible, so the only case possible acc to given st is p<|p| ,so st1 is sufficient

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