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Inequality problem

Expert replies
Source: — Problem Solving |

by GMATGuruNY » Sun Jan 29, 2017 4:22 am
x < ∞ means that "x is less than infinity."
This inequality seems illogical.
Ignore this problem.
To my knowledge, the infinity symbol -- ∞ -- has never appeared on the GMAT.
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by Brent@GMATPrepNow » Sun Jan 29, 2017 8:38 am
I agree with Mitch.
We can simplify the inequality as x < 2

What's the source of this question?

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by nahid078 » Tue Jan 31, 2017 3:07 am
Thank you Mitch and Brent.

The source of this question is E-Gmat, and i picked none of the above (E).
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by Matt@VeritasPrep » Wed Feb 01, 2017 6:31 pm
Is it just me, or did the prompt disappear? I can't see the original question.
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by Brent@GMATPrepNow » Wed Feb 01, 2017 6:39 pm
Matt@VeritasPrep wrote:Is it just me, or did the prompt disappear? I can't see the original question.
Here it is
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by Matt@VeritasPrep » Wed Feb 01, 2017 6:43 pm
Brent, you're a wizard!

Having ∞ and -∞ as the bounds looks janky to me: the GMAT would simply give -2 < x, not -2 < x < ∞.
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by Brent@GMATPrepNow » Wed Feb 01, 2017 6:57 pm
Matt@VeritasPrep wrote:Brent, you're a wizard!

Having ∞ and -∞ as the bounds looks janky to me: the GMAT would simply give -2 < x, not -2 < x < ∞.
Agreed! (on the janky part, not the wizard part)
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