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A certain highway has exits A, B, C, and D in that order. What is the

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V
Joined: 02 Sep 2009
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A certain highway has exits A, B, C, and D in that order. What is the  [#permalink]

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New post 12 Oct 2017, 23:16
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

78% (01:12) correct 22% (01:10) wrong based on 85 sessions

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A certain highway has exits A, B, C, and D in that order. What is the distance from exit B to exit C?

(1) The distance from exit A to exit C is 7 miles.
(2) The distance from exit B to exit D is 9 miles

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Re: A certain highway has exits A, B, C, and D in that order. What is the  [#permalink]

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New post 13 Oct 2017, 00:33
(1) Insuf, BC can take different values 0<BC<7
(2) Insuf, BC can take different values 0<BC<9
(1)+(2) BC still can take values 0<BC<7

Answer E.
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Re: A certain highway has exits A, B, C, and D in that order. What is the  [#permalink]

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New post 13 Oct 2017, 04:31
I think E.
We need distances between A B or C D to calculate distance between BC.
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Re: A certain highway has exits A, B, C, and D in that order. What is the  [#permalink]

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New post 13 Oct 2017, 06:14
1) Gives AB + BC = 7 , Insufficient
2) Gives BC + CD = 9, Insufficient

If we consider both (1) and (2)
Still BC cannot be determined

Answer E
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Re: A certain highway has exits A, B, C, and D in that order. What is the  [#permalink]

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New post 13 Oct 2017, 08:18
1/ AB + BC = 7 => cannot decide how much is BC => insuff => excl A and D

2/ BC + CD = 9 => cannot decide how much is BC => insuff => excl B

1 and 2 together => Cannot decide how much is BC => E

Please kudo if it helps. Thanks.
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Re: A certain highway has exits A, B, C, and D in that order. What is the &nbs [#permalink] 13 Oct 2017, 08:18
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A certain highway has exits A, B, C, and D in that order. What is the

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