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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC

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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 10 Jan 2016, 06:25
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D
E

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Question Stats:

90% (00:35) correct 10% (00:49) wrong based on 280 sessions

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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC = 4 cm, and BD = 6 cm, what is CD, in centimeters?

(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
[Reveal] Spoiler: OA

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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 11 Jan 2016, 07:18
Putting a value to each point, lets use the following:

A - 0
B - 3 (AB = 3)
C - 4 (AC = 4)
D - 9 (BD = 6)

CD is 9-4 = 5.

Ans E
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Re: Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 11 Jan 2016, 18:44
bc = 4- 3 = 1
cd= 6-1 = 5

Ans:E
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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 27 Nov 2016, 22:23
nipunjain14 wrote:
bc = 4- 3 = 1
cd= 6-1 = 5

Ans:E


How did you get the second part (CD = 6-1 = 5) ?

Thanks,
Leon
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Re: Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 28 Nov 2016, 01:22
leonidbasin1 wrote:
nipunjain14 wrote:
bc = 4- 3 = 1
cd= 6-1 = 5

Ans:E


How did you get the second part (CD = 6-1 = 5) ?

Thanks,
Leon


BC = AC- AB = 4 - 3 = 1
CD = BD - BC = 6 -1 = 5

Hope this is now clear.
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Re: Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC [#permalink]

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New post 11 Apr 2017, 21:51
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Bunuel wrote:
Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC = 4 cm, and BD = 6 cm, what is CD, in centimeters?

(A) 1
(B) 2
(C) 3
(D) 4
(E) 5


Given: The points are in order from A to D.
Given: Distance A to B = 3cm, Distance A to C = 4cm, Distance B to D = 6cm

Just draw a line:

A-----B-----C-----D
A--3--B--1--C--5--D

OA
[Reveal] Spoiler:
5

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Re: Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC   [#permalink] 11 Apr 2017, 21:51
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Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC

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