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Two car, S and T, each traveled a distance of 50 miles. Did car S use

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Two car, S and T, each traveled a distance of 50 miles. Did car S use  [#permalink]

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New post 15 Dec 2014, 09:14
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Tough and Tricky questions: Distance/Rate Problems.



Two car, S and T, each traveled a distance of 50 miles. Did car S use more gasoline than car T?

(1) Cars S and T traveled the entire distance at the rates of 55 miles per hour and 50 miles per hour, respectively.
(2) For the entire distance, car S traveled 20 miles per gallon of gasoline and car T traveled 25 miles per gallon of gasoline.


Kudos for a correct solution.

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Re: Two car, S and T, each traveled a distance of 50 miles. Did car S use  [#permalink]

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New post 15 Dec 2014, 11:29
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1. We don't know the efficiency of each car..irrespective of speed at which they travel we dont know how much gasoline was consumed.

Insufficient

2, One car travelled 20 mi per gallon another travelled 25 mi per gasoline..So we can calculate the gallons used for total disntace as we now know the distance per gallon each car tdavels
Sufficient

Ans B
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Re: Two car, S and T, each traveled a distance of 50 miles. Did car S use  [#permalink]

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New post 16 Dec 2014, 23:37
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Bunuel wrote:

Tough and Tricky questions: Distance/Rate Problems.



Two car, S and T, each traveled a distance of 50 miles. Did car S use more gasoline than car T?

(1) Cars S and T traveled the entire distance at the rates of 55 miles per hour and 50 miles per hour, respectively.
(2) For the entire distance, car S traveled 20 miles per gallon of gasoline and car T traveled 25 miles per gallon of gasoline.


Kudos for a correct solution.



1) not sufficient - We can find the time travelled not the gas consumed
2) sufficient - S consumed 2.5 gallon and T consumed 2 Gallon

Ans B
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Re: Two car, S and T, each traveled a distance of 50 miles. Did car S use  [#permalink]

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New post 23 Dec 2014, 06:46
Bunuel wrote:

Tough and Tricky questions: Distance/Rate Problems.



Two car, S and T, each traveled a distance of 50 miles. Did car S use more gasoline than car T?

(1) Cars S and T traveled the entire distance at the rates of 55 miles per hour and 50 miles per hour, respectively.
(2) For the entire distance, car S traveled 20 miles per gallon of gasoline and car T traveled 25 miles per gallon of gasoline.


Kudos for a correct solution.


The correct answer is B.
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Re: Two car, S and T, each traveled a distance of 50 miles. Did car S use  [#permalink]

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Re: Two car, S and T, each traveled a distance of 50 miles. Did car S use   [#permalink] 04 Jan 2019, 01:54
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