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Abdul and Hamid take a trip in Abdul's jeep. On the first

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Abdul and Hamid take a trip in Abdul's jeep. On the first  [#permalink]

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New post 01 Dec 2018, 19:30
2
00:00
A
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D
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Difficulty:

  55% (hard)

Question Stats:

62% (01:53) correct 38% (01:49) wrong based on 55 sessions

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Abdul and Hamid take a trip in Abdul's jeep. On the first leg of the trip, they drive 80 km/hr to their destination. On the second leg, they turn around and return by the same route in 4 hours. How long do they spend driving on the first leg?

(1) Their average speed for the entire trip is 70 km/hr.

(2) The distance to their destination is 240 km.

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Re: Abdul and Hamid take a trip in Abdul's jeep. On the first  [#permalink]

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New post 01 Dec 2018, 22:07
Harshgmat wrote:
Abdul and Hamid take a trip in Abdul's jeep. On the first leg of the trip, they drive 80 km/hr to their destination. On the second leg, they turn around and return by the same route in 4 hours. How long do they spend driving on the first leg?

(1) Their average speed for the entire trip is 70 km/hr.

(2) The distance to their destination is 240 km.

Posted from my mobile device


Let time be t
Stmt1:
Since total and first leg avg speed is know:
Total avg =70
first leg average=80
Since first leg average is 80 ,and total speed average is 70 ..the second leg average speed is 60.since distance is same.
so60/4=80/t

Sufficient

Stmt 2:
The distance to their destination is 240 km
Speed =Dist/time
Time=Dist/speed ..240/80 ..3 hours

Sufficient

And D

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Status: In last prep stage
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GMAT 2: 680 Q47 V37
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Re: Abdul and Hamid take a trip in Abdul's jeep. On the first  [#permalink]

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New post 01 Dec 2018, 22:11
This question is already discussed here:https://gmatclub.com/forum/james-and-andrea-take-a-trip-in-andrea-s-car-174373.html?fl=similar
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Re: Abdul and Hamid take a trip in Abdul's jeep. On the first   [#permalink] 01 Dec 2018, 22:11
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Abdul and Hamid take a trip in Abdul's jeep. On the first

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