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02 Apr 2018, 21:49
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
61% (01:32) correct
39%
(02:04)
wrong
based on 79
sessions
History
Date
Time
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Not Attempted Yet
What is the average (arithmetic mean) of R, S, and T?
(1) R + 2S + 3T = 30
(2) 3R = 90 - (2S + T)
(1) R + 2S + 3T = 30
(2) 3R = 90 - (2S + T)
02 Apr 2018, 22:58
Kudos
Bookmarks
Bunuel
From 1:insufficient
From 2:insufficient
combining both :
4(R+S+T)=120
therefore avg=10
