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# Is x - y > −10 ?

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Director
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Joined: 27 Oct 2018
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Location: Egypt
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WE: Pharmaceuticals (Health Care)
Is x - y > −10 ?  [#permalink]

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20 Aug 2019, 17:25
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00:00

Difficulty:

55% (hard)

Question Stats:

55% (01:28) correct 45% (02:01) wrong based on 29 sessions

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Is $$x - y > −10$$ ?

(1) $$5x + 2y > −10$$

(2) $$2y + x > −10$$

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Joined: 03 Jun 2019
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Re: Is x - y > −10 ?  [#permalink]

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20 Aug 2019, 18:47
1
Mahmoudfawzy83 wrote:
Is $$x - y > −10$$ ?

(1) $$5x + 2y > −10$$

(2) $$2y + x > −10$$

Is $$x - y > −10$$ ?

(1) $$5x + 2y > −10$$
NOT SUFFICIENT

(2) $$2y + x > −10$$
NOT SUFFICIENT

Combining (1) & (2)
There is no -y multiple. The equations can not be subtracted.
NOT SUFFICIENT

IMO E

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Re: Is x - y > −10 ?  [#permalink]

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20 Aug 2019, 22:03
2
We can even plot the graphs of three lines and as the areas don't match, none of the condition is sufficient to answer the question

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Re: Is x - y > −10 ?   [#permalink] 20 Aug 2019, 22:03
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