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# Is -7 < y < 10 ? (1) y > -6 (2) y < 0

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Math Expert
Joined: 02 Sep 2009
Posts: 43916
Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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11 Nov 2017, 06:55
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Difficulty:

25% (medium)

Question Stats:

86% (00:35) correct 14% (00:41) wrong based on 54 sessions

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Is -7 < y < 10 ?

(1) y > -6

(2) y < 0
[Reveal] Spoiler: OA

_________________
Math Expert
Joined: 02 Aug 2009
Posts: 5663
Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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11 Nov 2017, 09:47
Bunuel wrote:
Is -7 < y < 10 ?

(1) y > -6

(2) y < 0

Is -7 < y < 10 ?

(1) y > -6
if y is 0 ... Yes
if y is 15...No
Insuff

(2) y < 0
if y is -5...Yes
If y is -10... ans is No
Insuff

combined
$$0>y>-6$$
this falls within the range -7 < y < 10 ..
so ans is YES always

suff
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Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

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Joined: 25 Feb 2013
Posts: 948
Location: India
GPA: 3.82
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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11 Nov 2017, 09:55
chetan2u wrote:
Bunuel wrote:
Is -7 < y < 10 ?

(1) y > -6

(2) y < 0

Is -7 < y < 10 ?

(1) y > -6
if y is 0 ... Yes
if y is 15...No
Insuff

(2) y < 0
if y is -5...Yes
If y is -10... ans is No
Insuff

combined
$$0<y<-6$$
this falls within the range -7 < y < 10 ..
so ans is YES always

suff

Hi chetan2u

Intern
Joined: 11 Nov 2017
Posts: 19
Location: India
Concentration: Finance, Technology
GMAT 1: 720 Q49 V39
GPA: 3.5
WE: Consulting (Consulting)
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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11 Nov 2017, 10:18
Is -7 < y < 10 ?

(1) y > -6

(2) y < 0

Statement 1 doesnt put an upper limit for the value of y, and hence, not sufficient.
Statement 2 means y can take any negative value.

Combining; -6<y<0, which is a subset of the question stem.
Manager
Joined: 22 May 2017
Posts: 95
GMAT 1: 580 Q41 V29
GMAT 2: 580 Q43 V27
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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12 Nov 2017, 09:29
chetan2u wrote:
Bunuel wrote:
Is -7 < y < 10 ?

(1) y > -6

(2) y < 0

Is -7 < y < 10 ?

(1) y > -6
if y is 0 ... Yes
if y is 15...No
Insuff

(2) y < 0
if y is -5...Yes
If y is -10... ans is No
Insuff

combined
$$0>y>-6$$
this falls within the range -7 < y < 10 ..
so ans is YES always

suff

So according to you, answer is c
Dont you feel answer should be E because this don't give the correct answer.
PS Forum Moderator
Joined: 25 Feb 2013
Posts: 948
Location: India
GPA: 3.82
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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12 Nov 2017, 10:57
chetan2u wrote:
Bunuel wrote:
Is -7 < y < 10 ?

(1) y > -6

(2) y < 0

Is -7 < y < 10 ?

(1) y > -6
if y is 0 ... Yes
if y is 15...No
Insuff

(2) y < 0
if y is -5...Yes
If y is -10... ans is No
Insuff

combined
$$0>y>-6$$
this falls within the range -7 < y < 10 ..
so ans is YES always

suff

So according to you, answer is c
Dont you feel answer should be E because this don't give the correct answer.

this is a Yes / No question type so we only need either a Yes or a No and if we get both then the answer could be C

combining 1 & 2 we get $$-6<y<0$$. so all the values of $$y$$ in this range are between $$-7<y<10$$. We have a Yes here. So C is sufficient
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0   [#permalink] 12 Nov 2017, 10:57
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