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15 Aug 2022, 01:30
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
82% (01:14) correct
18%
(01:39)
wrong
based on 55
sessions
History
Date
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What was the average number of miles per gallon of gasoline for a car during a certain trip?
(1) The total cost of the gasoline used by the car for the 180-mile trip was $12.00
(2) The car drove twice as fast during the last 90 miles as it did for the first 90 miles.
(1) The total cost of the gasoline used by the car for the 180-mile trip was $12.00
(2) The car drove twice as fast during the last 90 miles as it did for the first 90 miles.
10 Sep 2022, 22:31
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What was the average number of miles per gallon of gasoline for a car during a certain trip?
St 1. The total cost of the gasoline used by the car for the 180-mile trip was $12.00
total cost is given but cost per gallon of gasoline is not given so we can't find the gasoline used to cover 180 mile trip..
st 1 is Not sufficient
St 2. The car drove twice as fast during the last 90 miles as it did for the first 90 miles.
Speed of car is given which is not sufficient to find amount of gasoline used for the trip
St 1 and 2 combined also doesn't give any information of the amount of gasoline. hence the average number of miles per gallon can't be determined
Answer: E
St 1. The total cost of the gasoline used by the car for the 180-mile trip was $12.00
total cost is given but cost per gallon of gasoline is not given so we can't find the gasoline used to cover 180 mile trip..
st 1 is Not sufficient
St 2. The car drove twice as fast during the last 90 miles as it did for the first 90 miles.
Speed of car is given which is not sufficient to find amount of gasoline used for the trip
St 1 and 2 combined also doesn't give any information of the amount of gasoline. hence the average number of miles per gallon can't be determined
Answer: E
11 Sep 2022, 04:58
Kudos
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Bunuel
Solution:
We are asked the average number of miles per gallon of gasoline for a car during a certain trip.
This means we are asked the value of \(\frac{distance. in .miles}{number.of.gallons.of.gasoline}\)
Statement 1: The total cost of the gasoline used by the car for the 180-mile trip was $12.00
We get the distance of the trip = 180 miles but we do not get the number of gallons of gasoline used.
Thus, statement 1 alone is not sufficient and we can eliminate options A and D.
Statement 2: The car drove twice as fast during the last 90 miles as it did for the first 90 miles
We get the distance of the trip = 90 + 90 = 180 miles but we do not get the number of gallons of gasoline used.
Thus, statement 2 alone is also not sufficient and we can eliminate option B
Combining:
Even after combining, we do not get the number of gallons of gasoline used.
Thus, even after combining it is not sufficient to get the answer.
Hence the right answer is Option E
