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Updated on: 15 May 2018, 03:52
Originally posted by Nanobotstv on 15 May 2018, 03:40.
Last edited by Bunuel on 15 May 2018, 03:52, edited 1 time in total.
Last edited by Bunuel on 15 May 2018, 03:52, edited 1 time in total.
Edited the question.
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B
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:
94% (00:42) correct
6%
(00:50)
wrong
based on 271
sessions
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Time
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Not Attempted Yet
In the figure above, what is the length of segment PQ?
(1) S is the midpoint of segment RT.
(2) Segment PT has length 10 and segment QT has length 6.
Attachment:
Capture_12.PNG [ 3.21 KiB | Viewed 5571 times ]
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:
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Data Sufficiency Forum
15 May 2018, 04:53
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alanforde800Maximus
OA: B
Statement 1: S is the midpoint of segment RT.
It gives RS = ST.
It does not tell anything about PQ.
Statement 2:Segment PT has length 10 and segment QT has length 6
PQ=PT-QT
PQ= 10-6
PQ = 4
hence statement 2 is alone sufficient
15 May 2018, 09:14
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alanforde800Maximus
Target question: What is the length of segment PQ?
Statement 1: S is the midpoint of segment RT
Since we are not given ANY actual measurements (i.e., lengths) whatsoever, there's no way to determine the length of PQ
Statement 1 is NOT SUFFICIENT
Statement 2: Segment PT has length 10 and segment QT has length 6
We know that: PT = PQ + QT
So, we can write: 10 = PQ + 6
Solve to get: PQ = 4
In other words, the answer to the target question is the length of segment PQ is 4
Since we can answer the target question with certainty, statement 2 is SUFFICIENT
Answer: B
Cheers,
Brent
