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Joe and Bill drove separate cars along the entire length of a certain

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Joe and Bill drove separate cars along the entire length of a certain  [#permalink]

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New post 13 Mar 2017, 08:13
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91% (00:38) correct 9% (00:00) wrong based on 25 sessions

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Joe and Bill drove separate cars along the entire length of a certain route. If Joe made the trip in 12 minutes, how many minutes did it take Bill to make the same trip?

(1) Both Joe and Bill left at 4 p.m.
(2) Joe's time was 3/7 of Bill's time.

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Re: Joe and Bill drove separate cars along the entire length of a certain  [#permalink]

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New post 13 Mar 2017, 12:36
Bunuel wrote:
Joe and Bill drove separate cars along the entire length of a certain route. If Joe made the trip in 12 minutes, how many minutes did it take Bill to make the same trip?

(1) Both Joe and Bill left at 4 p.m.
(2) Joe's time was 3/7 of Bill's time.



(1) no info of rates ...thus time cant be calcuated
insuff

(2) let Bill's time is x minutes
then 3x/7 =12
x=28minutes

suff

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Re: Joe and Bill drove separate cars along the entire length of a certain  [#permalink]

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New post 15 Mar 2017, 03:36
Joe time is 12 min
St1: nothing can be determined with this information. INSUFFICIENT

St 2: bill time *3/7 = joe time.
hence Bill time = 7/3 * 12 = 28 min. ANSWER

Option B
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Re: Joe and Bill drove separate cars along the entire length of a certain &nbs [#permalink] 15 Mar 2017, 03:36
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