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Is -3x > -3y ? (1) x < y (2) x > 0

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Joined: 27 Jun 2018
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Is -3x > -3y ? (1) x < y (2) x > 0  [#permalink]

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New post Updated on: 14 Aug 2018, 02:55
2
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (00:34) correct 19% (01:38) wrong based on 39 sessions

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Is -3x > -3y ?

(1) x < y
(2) x > 0

Originally posted by Simba87 on 14 Aug 2018, 02:50.
Last edited by Bunuel on 14 Aug 2018, 02:55, edited 1 time in total.
Renamed the topic, edited the question and added the OA.
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Re: Is -3x > -3y ? (1) x < y (2) x > 0  [#permalink]

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New post 14 Aug 2018, 02:55
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Simba87 wrote:
hi, got the below DS on GMAT prep. The OA is A ...which I am struggling to understand as surely it will depend on the signs as well and there for be C?

Is –3x > –3y ?

(1) x < y
(2) x > 0 



Let's solve the asked question :
-3x > -3y
3y - 3x > 0
y -x > 0
y>x - So the question asks is Y>X?

A gives us the exact answer here.
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Re: Is -3x > -3y ? (1) x < y (2) x > 0  [#permalink]

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New post 14 Aug 2018, 09:32
-3x>-3y

Divide both side of the equality by-3

It gives x<y. So question is x<y

(1) x<y. Directly gives the answer.[Suff]

(2) x>0. No inf about y [Insuff]

Answer: A.
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Re: Is -3x > -3y ? (1) x < y (2) x > 0   [#permalink] 14 Aug 2018, 09:32
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