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If a,b,c and d are points on number line such that

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If a,b,c and d are points on number line such that [#permalink] New post 10 Sep 2018, 21:53
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If a, b, c and d are points on number line such that a < b < c < d, b is twice as far from c as from a, and c is twice as far as b is from d, then what is the value of \(\frac{c-a}{d-b}\)?


A)\(\frac{1}{3}\)

B)\(\frac{2}{3}\)

C)\(\frac{1}{2}\)

D)1

E)3


Can anyone please post solution for this.
[Reveal] Spoiler: OA
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Re: If a,b,c and d are points on number line such that [#permalink] New post 11 Sep 2018, 00:04
Can you give us an explanation please?
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Re: If a,b,c and d are points on number line such that [#permalink] New post 11 Sep 2018, 00:06
please post solution for this problem.
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Re: If a,b,c and d are points on number line such that [#permalink] New post 11 Sep 2018, 15:20
Expert's post
Actually, the question says tha

a=1

b=2

c=4

d=5

b is twice as far from c as from a, and c is twice as far as b

The stem repeats the same thing twice. B and c are two units apart.

\(\frac{4-1}{5-2}=\frac{3}{3}=1\)

D
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Re: If a,b,c and d are points on number line such that [#permalink] New post 13 Sep 2018, 01:33
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Took 2 approaches. I put a on left of zero and then right of zero
Left of zero:
a = -1, b = 0, c = 2, d =3
--> 2+1/3-0 = 3/3 =1

rightof zero:
a =0, b =1, c =3, d = 4
answer: 3-0/4-1 = 3/3/ =1

Answer D
Re: If a,b,c and d are points on number line such that   [#permalink] 13 Sep 2018, 01:33
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If a,b,c and d are points on number line such that

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