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16 Sep 2014, 00:42
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Is point \(A\) closer to point \((1, 2)\) than to point \((2, 1)\)?
(1) Point \(A\) lies on the line \(y = x\)
(2) Point \(A\) lies on the line \(y = -x\)
(1) Point \(A\) lies on the line \(y = x\)
(2) Point \(A\) lies on the line \(y = -x\)
16 Sep 2014, 00:42
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Official Solution:
Is point \(A\) closer to point \((1, 2)\) than to point \((2, 1)\)?
Refer to the diagram below.
(1) Point \(A\) lies on the line \(y = x\).
You can see that no matter where on blue line point A is, it will always be equidistant from the given points. Sufficient.
(2) Point \(A\) lies on the line \(y = -x\).
If A is on the red line we cannot say whether it's closer to point (1, 2) than to point (2, 1). Not sufficient.
Answer: A
Is point \(A\) closer to point \((1, 2)\) than to point \((2, 1)\)?
Refer to the diagram below.
(1) Point \(A\) lies on the line \(y = x\).
You can see that no matter where on blue line point A is, it will always be equidistant from the given points. Sufficient.
(2) Point \(A\) lies on the line \(y = -x\).
If A is on the red line we cannot say whether it's closer to point (1, 2) than to point (2, 1). Not sufficient.
Answer: A
24 May 2016, 05:48
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I read somewhere (don't remember the exact source, but must be some GMAT Prep Book) that in GMAT Data Sufficiency the statements can never be contradictory or can never provide conflicting information. That is, it's not possible to have a statement that says X = 0 (or say, X is Odd) while the another statement says X = 1 (or say, X is even).
Just wanted to check that for this particular problem, can the statements be considered contradictory or conflicting?
Just wanted to check that for this particular problem, can the statements be considered contradictory or conflicting?
