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13 Jul 2019, 18:11
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
57% (01:04) correct
43%
(01:09)
wrong
based on 159
sessions
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What is the value of |x - 2|?
(1) x^2 - 4x = 12
(2) x < 2
Source: McGraw GMAT 11th Edition
(1) x^2 - 4x = 12
(2) x < 2
Source: McGraw GMAT 11th Edition
13 Jul 2019, 19:01
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anmolgmat14 RajeshKanjan
The two values that we get from Statement (1) are - 2 and 6, putting which into |x-2| gives us the same and hence, a "unique" answer
For x = -2, |-2-2| = |-4| = 4;
For x = 6, |6-2| = |4| = 4
And hence, (A) is SUFFICIENT to arrive at a unique answer.
PLEASE HIT KUDOS IF YOU LIKE MY SOLUTION
[banner_got][/banner_got]
The two values that we get from Statement (1) are - 2 and 6, putting which into |x-2| gives us the same and hence, a "unique" answer
For x = -2, |-2-2| = |-4| = 4;
For x = 6, |6-2| = |4| = 4
And hence, (A) is SUFFICIENT to arrive at a unique answer.
PLEASE HIT KUDOS IF YOU LIKE MY SOLUTION
[banner_got][/banner_got]
General Discussion
13 Jul 2019, 18:43
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From 1 we are getting 2 values, Then how A can be the answer ?
