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# On a certain number line, if -7 is a distance 4 from n and 7

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Intern
Joined: 08 Sep 2005
Posts: 44
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On a certain number line, if -7 is a distance 4 from n and 7 [#permalink]  31 Mar 2006, 20:59
On a certain number line, if -7 is a distance 4 from n and 7 is a distance of 18 from n, then n =

a) 25
b) 11
c) 3
d) -3
e) -11

How do you guys interpret this one?
VP
Joined: 29 Dec 2005
Posts: 1349
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Re: Distance [#permalink]  31 Mar 2006, 21:35
john2005 wrote:
On a certain number line, if -7 is a distance 4 from n and 7 is a distance of 18 from n, then n =

a) 25
b) 11
c) 3
d) -3
e) -11

How do you guys interpret this one?

good question.

e) -11
VP
Joined: 29 Apr 2003
Posts: 1405
Followers: 2

Kudos [?]: 18 [0], given: 0

(n) 4 | 4 (n)
-11-----7-----3---0-------7

Clearly the distance is 18 when we choose n as -11!
Senior Manager
Joined: 11 Nov 2005
Posts: 332
Location: London
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Re: Distance [#permalink]  01 Apr 2006, 06:34
the Q is very simple but the text is not very clear. should not be like below?

Anyway, only -11 satisfy the statement.

john2005 wrote:
On a certain number line, if -7 is at distance 4 from n and 7 is at distance of 18 from n, then n =

a) 25
b) 11
c) 3
d) -3
e) -11

How do you guys interpret this one?
Re: Distance   [#permalink] 01 Apr 2006, 06:34
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