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Digits: If J, S, and V are points on a number line ...

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by II » Sat Apr 12, 2008 3:16 pm
Find attached the question ...

How would you go about solving this one ?

Thanks.
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Points on a line - number properties.jpg
Last edited by II on Mon May 05, 2008 1:43 am, edited 1 time in total.
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Source: — Data Sufficiency |
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by Stuart@KaplanGMAT » Sat Apr 12, 2008 6:13 pm
Quickly eliminate (1) and (2) alone, since neither mentions all 3 points.

Combined: we don't know the relative directions of each point. We're going to be able to draw them in 2 different ways, which will give us 2 different answers: choose (e).
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by yalephd2007 » Sun Apr 13, 2008 8:16 am
thanks, stuart
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by II » Thu Jul 10, 2008 3:04 pm
if you were categorising this question ... how would you categorise it ? Would you say it is a number properties problem ? What is this question aiming to test ?
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by Stuart@KaplanGMAT » Thu Jul 10, 2008 3:35 pm
II wrote:if you were categorising this question ... how would you categorise it ? Would you say it is a number properties problem ? What is this question aiming to test ?
It's a number properties question, but what it's really testing is whether you're making bad assumptions. Some test takers will assume that the points appear in the order listed, but of course veterans of the GMAT know that it's dangerous to make any assumptions in data sufficiency.
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by ildude02 » Fri Jul 18, 2008 12:43 pm
Stuart Kovinsky wrote:
II wrote:if you were categorising this question ... how would you categorise it ? Would you say it is a number properties problem ? What is this question aiming to test ?
It's a number properties question, but what it's really testing is whether you're making bad assumptions. Some test takers will assume that the points appear in the order listed, but of course veterans of the GMAT know that it's dangerous to make any assumptions in data sufficiency.
Stuart,

Can we safely assume that if given a point U and V on a numberline and if V is to the right of point U, then V > U always?
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by Stuart@KaplanGMAT » Fri Jul 18, 2008 3:41 pm
ildude02 wrote: Stuart,

Can we safely assume that if given a point U and V on a numberline and if V is to the right of point U, then V > U always?
Yuppers!
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