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

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Kudos [?]: 133072 [0], given: 12403

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

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New post 11 Nov 2017, 07:55
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

86% (00:34) correct 14% (00:38) wrong based on 41 sessions

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Kudos [?]: 133072 [0], given: 12403

Expert Post
Math Expert
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Joined: 02 Aug 2009
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Kudos [?]: 5876 [0], given: 118

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

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New post 11 Nov 2017, 10:47
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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Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

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Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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New post 11 Nov 2017, 10:55
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

the answer seems to be correct but the inequality sign in the highlighted part is incorrect.

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Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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New post 11 Nov 2017, 11:18
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.

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Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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New post 12 Nov 2017, 10:29
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.

Kudos [?]: 7 [0], given: 221

Director
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avatar
P
Joined: 25 Feb 2013
Posts: 567

Kudos [?]: 257 [0], given: 35

Location: India
Schools: Mannheim"19 (S)
GPA: 3.82
GMAT ToolKit User Reviews Badge
Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0 [#permalink]

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New post 12 Nov 2017, 11:57
Adityagmatclub wrote:
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.


Hi Adityagmatclub

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

Kudos [?]: 257 [0], given: 35

Re: Is -7 < y < 10 ? (1) y > -6 (2) y < 0   [#permalink] 12 Nov 2017, 11:57
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