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Is |x|/x equals to 1?

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Math Revolution GMAT Instructor
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Is |x|/x equals to 1?  [#permalink]

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New post 29 Apr 2016, 20:17
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Question Stats:

82% (00:36) correct 18% (00:35) wrong based on 93 sessions

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Is |x|/x equals to 1?

1) x>0
2) x<1


* A solution will be posted in two days.

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Re: Is |x|/x equals to 1?  [#permalink]

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New post 29 Apr 2016, 20:32
1
St1: x is positive --> +ve/+ve = +ve --> Sufficient

St2: x may be positive or negative --> +ve/+ve = +ve; +ve/-ve = -ve --> Not Sufficient

Answer: A
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Re: Is |x|/x equals to 1?  [#permalink]

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New post 04 May 2016, 07:23
If we modify the original condition, we can write |x|/x=1? as |x|=x?. Hence, the question becomes x>0?. Thus, the correct answer is A.

- Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.
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Re: Is |x|/x equals to 1?  [#permalink]

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New post 06 Mar 2018, 05:30
MathRevolution wrote:
Is |x|/x equals to 1?

1) x>0
2) x<1


* A solution will be posted in two days.


Question : Is |x|/x equals to 1.

or Is |x| = x, which is possible when x > 0, so we need to find out whether x > 0 or not.

St 1: x > 0 (Sufficient)

St 2: x < 1

Take x = 0.5, then Is |0.5|/0.5 = 0.5/0.5 = 1

But if x = -1, then 1/-1 not equal to 1

Therefore, Not sufficient

(A)
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Re: Is |x|/x equals to 1?  [#permalink]

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New post 12 Jun 2019, 19:49
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Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Is |x|/x equals to 1?   [#permalink] 12 Jun 2019, 19:49
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