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13 Apr 2022, 02:30
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Difficulty:
25%
(medium)
Question Stats:
76% (01:22) correct
24%
(01:25)
wrong
based on 62
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Is the distance between exits 4 and 5 longer than 12 miles?
(1) One car drives the distance between the two exits in 12 minutes at a rate of 55 miles per hour.
(2) Another car takes less than 13 minutes to travel the distance going 60 miles per hour.
(1) One car drives the distance between the two exits in 12 minutes at a rate of 55 miles per hour.
(2) Another car takes less than 13 minutes to travel the distance going 60 miles per hour.
14 Apr 2022, 09:53
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Step 1: Analyse Question Stem
We have to find if the distance between two exits, 4 and 5, is longer than 12 miles.
By definition, Distance = Speed * Time.
We will have to use this equation to answer this question.
Step 2: Analyse Statements Independently (And eliminate options) – AD / BCE
Statement 1: One car drives the distance between the two exits in 12 minutes at a rate of 55 miles per hour.
We have precise information about the time taken and the speed. The exact distance travelled by this car can be calculated. If a definite value can be calculated, the question can be answered with a unique YES or NO.
Statement 1 alone is sufficient. Answer options B, C and E can be eliminated.
Statement 2: Another car takes less than 13 minutes to travel the distance going 60 miles per hour.
Although we have the exact speed at which the car travelled, 60 miles per hour, the statement says that the car takes less than 13 minutes to travel the distance between the two exits.
Note that entities like Distance, Time and Speed are real numbers and not necessarily integers.
Therefore, less than 13 minutes means any number less than 13; so the car could have taken 12.5 minutes or 12 minutes or 12 mins.
Hence, the car may have travelled 12.5 miles or 12 miles or any other value less than 13. This means that we have a YES or NO to the question.
Statement 2 alone is insufficient. Answer options D can be eliminated.
The correct answer option is A.
We have to find if the distance between two exits, 4 and 5, is longer than 12 miles.
By definition, Distance = Speed * Time.
We will have to use this equation to answer this question.
Step 2: Analyse Statements Independently (And eliminate options) – AD / BCE
Statement 1: One car drives the distance between the two exits in 12 minutes at a rate of 55 miles per hour.
We have precise information about the time taken and the speed. The exact distance travelled by this car can be calculated. If a definite value can be calculated, the question can be answered with a unique YES or NO.
Statement 1 alone is sufficient. Answer options B, C and E can be eliminated.
Statement 2: Another car takes less than 13 minutes to travel the distance going 60 miles per hour.
Although we have the exact speed at which the car travelled, 60 miles per hour, the statement says that the car takes less than 13 minutes to travel the distance between the two exits.
Note that entities like Distance, Time and Speed are real numbers and not necessarily integers.
Therefore, less than 13 minutes means any number less than 13; so the car could have taken 12.5 minutes or 12 minutes or 12 mins.
Hence, the car may have travelled 12.5 miles or 12 miles or any other value less than 13. This means that we have a YES or NO to the question.
Statement 2 alone is insufficient. Answer options D can be eliminated.
The correct answer option is A.
14 Apr 2022, 10:21
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From Statement 1 we can find the exact distance, so of course we can answer the question.
For Statement 2, a car traveling 60 mph is traveling one mile each minute. So Statement 2 just says the distance is less than 13 miles, which is not sufficient -- it might or might not be greater than 12 miles. So the answer is A.
For Statement 2, a car traveling 60 mph is traveling one mile each minute. So Statement 2 just says the distance is less than 13 miles, which is not sufficient -- it might or might not be greater than 12 miles. So the answer is A.
