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Bunuel
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Bunuel

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.


Statement 1: Since both cars travel the same distance i.e. 50 miles, distance traveled = constant.

Therefore, time taken will be inversely proportional to the speeds of two cars.

If Speed (Car S) > Speed (Car T), then

Time (Car S) < Time (Car T)

However, unless we know the fuel consumption rate (gallons/unit of time), we can't calculate the actual gallons of fuel consumed by each of the cars.

INSUFFICIENT

Statement 2: Directly gives you the gallons of fuel consumed by two cars - SUFFICIENT
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Hello from the GMAT Club BumpBot!

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