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19 Mar 2018, 01:43
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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:
84% (01:12) correct
16%
(01:58)
wrong
based on 91
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In the figure, PSQ is a straight line and RS is perpendicular to ST. If the measure of angle RSQ = 48°, how many degrees are there in angle PST?
A. 48
B. 90
C. 132
D. 136
E. 138
Attachment:
2018-03-19_1041.png [ 5.35 KiB | Viewed 5623 times ]
19 Mar 2018, 01:44
Kudos
Bookmarks
Bunuel
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Ultimate GMAT Quantitative Megathread
19 Mar 2018, 01:50
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Bunuel
As our calculation is straightforward, we'll just do it.
This is a Precise approach.
\(\angle\)PST = 360 - \(\angle\)RST - \(\angle\)RSP
We're told that \(\angle\)RST = 90 and we can calculate \(\angle\)RSP as 180 - 48 = 132.
Then \(\angle\)PST = 360 - 90 - 132 = 138.
(E) is our answer.
