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On the number line the distance between point A and C is 5

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Director
Joined: 24 Oct 2005
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On the number line the distance between point A and C is 5 [#permalink]

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22 Jul 2007, 21:28
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

On the number line the distance between point A and C is 5 and the distance between point B and C is 20. Does point C lie between A and B?

1. Distance between A and B is 25
2. A lies to the left of B
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22 Jul 2007, 21:57
what is number line? I am assuming straight line

1 is enough

2. is sufficient too.

I would go for "both alone are sufficient"

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22 Jul 2007, 22:16
St1:
Insufficient. Could be B on the left, A in the middle and C on the right OR COuld be A or the left, C in the middle and B on the right etc.

St2:
C could be on the left of A or the right of B. Insufficient.

Using both st1 and st2:
C must be in the middle. Sufficient.

Ans C

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22 Jul 2007, 22:21
ywilfred wrote:
St1:
Insufficient. Could be B on the left, A in the middle and C on the right OR COuld be A or the left, C in the middle and B on the right etc.

St2:
C could be on the left of A or the right of B. Insufficient.

Using both st1 and st2:
C must be in the middle. Sufficient.

Ans C

what is number line? I am assuming straight line

Am I missing something?

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22 Jul 2007, 22:22
A number line is just a line indicating positions of a number with respect to another number.

Think of it as ruler except that this ruler can go negatives.

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22 Jul 2007, 22:38
ywilfred wrote:
A number line is just a line indicating positions of a number with respect to another number.

Think of it as ruler except that this ruler can go negatives.

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22 Jul 2007, 22:38
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