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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:
45%
(medium)
Question Stats:
60% (01:26) correct
40%
(01:40)
wrong
based on 269
sessions
History
Date
Time
Result
Not Attempted Yet
30 Jul 2017, 10:26
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DH99
Re-arrange the equation in the question stem by adding b to both sides and we notice that the question is really asking:
Is a > b?
Also note that both a and b cannot be 0:
S1:
Re-arrange the equation by adding b to both sides and we get:
|a| > b
Note that the abs value hides the sign of a. We can test a few numbers that both meets the criteria |a| > b :
If a = -3 and b = 2 a < b
If a = 3 and b = 2 then a > b
Therefore, it is not sufficient.
S2:
Re-arrage the equation by adding |b| to both sides and we get:
a > |b|
Note that |b| hides the sign of b, but since a > |b| that means a must be positive since absolute value of a number is always positive and b cannot be 0
if b is negative: a > b since a is positive and a positive is always > a negative
if b is positive, a > b since we are given that a > |b|
Therefore, the answer is B
30 Jul 2017, 11:23
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