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22 Jan 2011, 06:14
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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Question Stats:
25% (00:23) correct
75%
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wrong
based on 9
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What is the value of x?
(i) Distance of x from y is the same as y from zero
(ii) x is to the right of y
How do we solve this using:
(i) absolute method:|x - y| = |y|
(ii) number line: relative distance on the number line
IMO OA:
(i) Distance of x from y is the same as y from zero
(ii) x is to the right of y
How do we solve this using:
(i) absolute method:|x - y| = |y|
(ii) number line: relative distance on the number line
IMO OA:
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22 Jan 2011, 06:39
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gmatbull
Don't go for absolute values while solving this one. Number line approach is much more easier. Also apart from these concepts, we can easily conclude that both the options together is not sufficient as none of them tells us any value of x or y. Anyway let's analyze it with number lines.
Statement 1: Implies either x is also equal to zero or x = 2y.
Not sufficient
Statement 2: We have only information that x > y.
Not sufficient
1 & 2 Together: Now either {y < 0 and x = 0} or {y > 0 and x = 2y}
Not sufficient
The correct answer is E.
18 Feb 2011, 06:13
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gmatbull
i) This tells us that 0,x&y are equally spaced. Many numbers will satisfy this condition. Example, x=8, y=4 or x=6, y=3. Not sufficient
ii) Again, they could be any numbers. Same numbers picked in the above examples prove this. Insufficent.
i & ii together provide us with no new information. Hence insufficient.
Answer E.
