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

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Intern
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If a,b,c and d are points on number line such that [#permalink]  10 Sep 2018, 21:53
00:00

Question Stats:

80% (02:25) correct 20% (01:18) wrong based on 5 sessions
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
Intern
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Kudos [?]: 0 [0], given: 2

Re: If a,b,c and d are points on number line such that [#permalink]  11 Sep 2018, 00:04
Can you give us an explanation please?
Intern
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Re: If a,b,c and d are points on number line such that [#permalink]  11 Sep 2018, 00:06
please post solution for this problem.
Founder
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Re: If a,b,c and d are points on number line such that [#permalink]  11 Sep 2018, 15:20
Expert's post
Manager
Joined: 19 Mar 2018
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Kudos [?]: 28 [1] , given: 44

Re: If a,b,c and d are points on number line such that [#permalink]  13 Sep 2018, 01:33
1
KUDOS
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

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