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Is xy > 0? (1) x = −3 (2) y = 0

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Is xy > 0? (1) x = −3 (2) y = 0  [#permalink]

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New post 13 Apr 2017, 07:54
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

82% (00:24) correct 18% (00:23) wrong based on 87 sessions

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GMAT 1: 510 Q35 V26
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Re: Is xy > 0? (1) x = −3 (2) y = 0  [#permalink]

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New post 13 Apr 2017, 07:58
Bunuel wrote:
Is xy > 0?

(1) x = −3
(2) y = 0


Statement 1 does not say anything about Y, hence Insufficient.
Statement 2 says Y=0. Hence whatever be the value of X, XY will be 0. This gives us a concrete answer, Hence SUFFICIENT

(B)
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Re: Is xy > 0? (1) x = −3 (2) y = 0  [#permalink]

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New post 13 Apr 2017, 09:49
Bunuel wrote:
Is xy > 0?

(1) x = −3
(2) y = 0


It literally took only 10 seconds to identify ....
Answer is B:

1. Stmt 1 doesn't say anything about y.
if y=-ve number then xy>0 but if y=+ve number xy<0; insufficient

2. Stmt 2 states y=0; therefore, for any value of x the value of xy=0 which is enough to answer our question; sufficient

Therefore: Answer B
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Re: Is xy > 0? (1) x = −3 (2) y = 0  [#permalink]

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New post 01 Jun 2017, 11:08
Is xy > 0?

(1) x = −3

Let y= -1 ..........Answer is Yes

Let y= 1............Answer is NO

Insufficient

(2) y = 0

It means that whatever value of x, value of xy =0 ...............Answer is always NO

Sufficient

Answer: B
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Re: Is xy > 0? (1) x = −3 (2) y = 0  [#permalink]

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New post 05 Aug 2018, 16:41
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Is xy > 0? (1) x = −3 (2) y = 0 &nbs [#permalink] 05 Aug 2018, 16:41
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