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18 Jul 2019, 15:02
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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:
65%
(hard)
Question Stats:
45% (01:56) correct
55%
(01:44)
wrong
based on 55
sessions
History
Date
Time
Result
Not Attempted Yet
Is (-2,-√3) a point on line OQ?
(1) P = (-1,√3)
(2) Angle POQ = 60 degrees
GMATbuster's Collection
18 Jul 2019, 20:37
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gmatbusters
Is (-2,-√3) a point on line OQ?
(1) P = (-1,√3)
(2) Angle POQ = 60 degrees
GMATbuster's Collection
To find whether slope of OQ is √3/2 or not.
(1) Slope of the line P can be calculated as -√3, and we can determine angle which OP makes with negative x axis. But, no information related to OQ given. Insufficient.
(2) Angle POQ do not give any specific information about OQ. Insufficient.
(1)+(2), we know angle which OP makes with negative x axis from (1), therefore angle which OQ makes with negative x axis can be calculated.
From this information we will be able to tell whether slope of OQ is √3/2 or not. We actually dont need to calculate the value as this is a DS question.
IMO C
04 Aug 2019, 17:42
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gmatbusters
Is (-2,-√3) a point on line OQ?
(1) P = (-1,√3)
(2) Angle POQ = 60 degrees
GMATbuster's Collection
Hi gmatbusters,
Can you please post the official OE for this question. Thank you.
