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Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4

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Joined: 02 Sep 2009
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Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4  [#permalink]

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New post 01 Jul 2018, 20:03
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

67% (01:02) correct 33% (00:36) wrong based on 37 sessions

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Joined: 05 May 2018
Posts: 7
Re: Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4  [#permalink]

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New post 01 Jul 2018, 20:15
1
Bunuel wrote:
Is a + b + c = 7 ?

(1) a + b = 3

(2) b + c = 4
1. Not sufficient
2. Not sufficient
When we combine 1 and 2 then equation becomes
a+2b+c=7.
This means a+b+c <7 .
So answer is NO .
C is the answer

Sent from my A0001 using GMAT Club Forum mobile app
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Status: GMAT APPLICANT
Joined: 29 Apr 2018
Posts: 15
Location: India
GPA: 3.69
WE: Corporate Finance (Retail Banking)
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Re: Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4  [#permalink]

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New post 01 Jul 2018, 20:22
Paul4gmat wrote:
Bunuel wrote:
Is a + b + c = 7 ?

(1) a + b = 3

(2) b + c = 4
1. Not sufficient
2. Not sufficient
When we combine 1 and 2 then equation becomes
a+2b+c=7.
This means a+b+c <7 .
So answer is NO .
C is the answer

Sent from my A0001 using GMAT Club Forum mobile app



And what if B= 0 ??

I think the ans should be E.

Posted from my mobile device
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Intern
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Joined: 05 May 2018
Posts: 7
Re: Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4  [#permalink]

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New post 01 Jul 2018, 22:17
GURUCHANAKYA wrote:
Paul4gmat wrote:
Bunuel wrote:
Is a + b + c = 7 ?

(1) a + b = 3

(2) b + c = 4
1. Not sufficient
2. Not sufficient
When we combine 1 and 2 then equation becomes
a+2b+c=7.
This means a+b+c <7 .
So answer is NO .
C is the answer

Sent from my A0001 using GMAT Club Forum mobile app



And what if B= 0 ??

I think the ans should be E.

Posted from my mobile device
Oops . . I missed that point ..
It should be E
Thanks for the input

Sent from my A0001 using GMAT Club Forum mobile app
GMAT Club Bot
Re: Is a + b + c = 7 ? (1) a + b = 3 (2) b + c = 4 &nbs [#permalink] 01 Jul 2018, 22:17
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