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09 Mar 2016, 12:51
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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:
25%
(medium)
Question Stats:
79% (01:06) correct
21%
(01:12)
wrong
based on 65
sessions
History
Date
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Not Attempted Yet
09 Mar 2016, 23:52
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a b
3 1
-1 -3
This shows a can be either +ve or -ve
Hence answer E
3 1
-1 -3
This shows a can be either +ve or -ve
Hence answer E
11 Mar 2016, 10:35
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Bunuel
Is a positive?
(1) a - b > 0
(2) 2a - b > 0
(1) a - b > 0
(2) 2a - b > 0
Picking no. is best solution
1. a-b>0
a=5: b=3.....yes
a=-1:b=-4....No.......insuff
2. 2a-b>0
a=5: b=1....Yes
a=-1/2 : b=-3....No........insuff
combining again
a=5: b=1....Yes
a=-1/2 : b=-3....No.......insuff
Ans E.
