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On the number line, the distance between point A and point C [#permalink]
15 Jun 2008, 18:25

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A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 0 sessions

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

1) The distance between point A and point B is 25 2) Point A liest to the left of Point B.

Re: Number Line - DS [#permalink]
15 Jun 2008, 18:39

gmat blows wrote:

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

1) The distance between point A and point B is 25 2) Point A liest to the left of Point B.

A.

given that AC=5, BC=20 and AC=25 , C should be in between AB

Re: Number Line - DS [#permalink]
16 Jun 2008, 11:43

gmat blows wrote:

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

1) The distance between point A and point B is 25 2) Point A liest to the left of Point B.

The answer is D -- both statements are sufficient.

(1) is sufficient for the reasons already stated in this post. (2) is sufficient because we know the relative placement of A and C and the distance between them. From the question stem, we know that point B can not be between A and C because of the large distance between B and C. Therefore, B can either be to the left of A (and thus, the left of C) or to the right of A (and thus, the right of C). Statememt (2) clears up this question. _________________

Factorials were someone's attempt to make math look exciting!!!

Re: Number Line - DS [#permalink]
16 Jun 2008, 12:12

Yeah the answer is D

from the stem we get 2 situations

1) A--5--C-----20-----B 2) B-----15-------A--5--C

now we need to find out which of the above 2 situations hold

choice A says A) Distance betn A and B is 25 which means situation (1) applies - sufficient Choice B says B)Point A lies left of point B - again situation (1) applies - Sufficient

Re: Number Line - DS [#permalink]
16 Jun 2008, 14:28

aren't there 4 possibilities from the stem?? because both A could be 5 to the left or 5 to the right of C. and B could be 20 to the left or 20 to the right of C.

Re: Number Line - DS [#permalink]
17 Jun 2008, 05:19

maulikmajithia wrote:

Yeah the answer is D

from the stem we get 2 situations

1) A--5--C-----20-----B 2) B-----15-------A--5--C

now we need to find out which of the above 2 situations hold

choice A says A) Distance betn A and B is 25 which means situation (1) applies - sufficient Choice B says B)Point A lies left of point B - again situation (1) applies - Sufficient

Good point. My mistake, I forgot to swap the positions of A and C --> answer should be A _________________

Factorials were someone's attempt to make math look exciting!!!