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21 Feb 2018, 23:05
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
83% (00:54) correct
17%
(01:16)
wrong
based on 65
sessions
History
Date
Time
Result
Not Attempted Yet
How far is gas station X from gas station Z ?
(1) Gas station Y is 5 miles from gas station Z.
(2) Gas station X is 3 miles from gas station Y.
(1) Gas station Y is 5 miles from gas station Z.
(2) Gas station X is 3 miles from gas station Y.
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
21 Feb 2018, 23:36
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Bunuel
the alignment of the gas stations is unknown but we know from (1) y to z = 5 insufficient and (2) x to y = 3
combining we have x to y and y to z distance
the arrangement is not known & we can't find a unique value
(E) imo
Mo2men
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22 Feb 2018, 02:55
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Bunuel
1) No Info about x
Insufficient
2) No Info about z
Insufficient
Combines 1 & 2
Case 1: x........3........Y..........5........z the distance between x & z = 8 miles
Case 2: Y........3........x..........2........z the distance between x & z = 2 miles
Two cases with different values.
Answer: E
