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A truck and a van leave the same location at the same time traveling

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Math Expert
Joined: 02 Sep 2009
Posts: 58414
A truck and a van leave the same location at the same time traveling  [#permalink]

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02 Apr 2018, 22:05
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Difficulty:

5% (low)

Question Stats:

97% (00:38) correct 3% (00:22) wrong based on 51 sessions

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A truck and a van leave the same location at the same time traveling in opposite directions. In how many hours will the two vehicles be 405 miles apart?

(1) The truck travels due east at 70 miles per hour.
(2) The van travels due west at 65 miles per hour.

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Intern
Joined: 28 Apr 2014
Posts: 49
GMAT 1: 640 Q50 V25
Re: A truck and a van leave the same location at the same time traveling  [#permalink]

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02 Apr 2018, 22:15
IMO C

let the speed of truck be x and that of van be y
t=405/(x+y)
so we need the value of both the speed. Hence C
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Joined: 05 Feb 2016
Posts: 168
Location: India
Concentration: General Management, Marketing
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Re: A truck and a van leave the same location at the same time traveling  [#permalink]

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02 Apr 2018, 22:55
Bunuel wrote:
A truck and a van leave the same location at the same time traveling in opposite directions. In how many hours will the two vehicles be 405 miles apart?

(1) The truck travels due east at 70 miles per hour.
(2) The van travels due west at 65 miles per hour.

given t=405/(x+y)

from :1 x=70 ;
insufficient.

from :2 y=65 ;
insufficient.

Combining both we will get value of t

So C.
Re: A truck and a van leave the same location at the same time traveling   [#permalink] 02 Apr 2018, 22:55
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A truck and a van leave the same location at the same time traveling

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