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macjas
Joined: 09 May 2012
Last visit: 30 Jul 2015
Posts: 306
Given Kudos: 100
Affiliations: UWC
Location: Canada
Schools: Rotman '15 (A) Schulich '15 (M)
GMAT 1: 620 Q42 V33
GMAT 2: 680 Q44 V38
GPA: 3.43
WE:Engineering (Media/Entertainment)
Products:
27 May 2012, 09:32
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
89% (00:41) correct
11%
(00:45)
wrong
based on 236
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of a − b ?
(1) (10+a)/c = 1
(2) (15+b)/c = 1
(1) (10+a)/c = 1
(2) (15+b)/c = 1
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
28 May 2012, 03:06
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macjas
Each statement alone is clearly insufficient to answer the question. When taken together we have: c=10+a and c=15+b --> 10+a=15+b --> a-b=15-10=5. Sufficient.
Answer: C.
29 Mar 2017, 05:39
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