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29 Jul 2025, 22:00
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
92% (00:53) correct
8%
(00:54)
wrong
based on 79
sessions
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What was the average number of miles per gallon of gasoline for a car during a certain trip?
(1) The car used 20 gallons of gasoline for the 200 mile trip.
(2) The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(1) The car used 20 gallons of gasoline for the 200 mile trip.
(2) The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
29 Jul 2025, 23:56
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Bookmarks
What was the average number of miles per gallon of gasoline for a car during a certain trip?
(1) The car used 20 gallons of gasoline for the 200 mile trip.
Sufficient
We can determine the answer as 200 mile/20 gallon = 10mile per gallon
(2) The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven.
Sufficient
We can determine the answer as 50 mile/5 gallon = 10mile per gallon
Even if the person does 170 mile trip, the answer remains same as it is per gallon.
(D) is the answer.
(1) The car used 20 gallons of gasoline for the 200 mile trip.
Sufficient
We can determine the answer as 200 mile/20 gallon = 10mile per gallon
(2) The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven.
Sufficient
We can determine the answer as 50 mile/5 gallon = 10mile per gallon
Even if the person does 170 mile trip, the answer remains same as it is per gallon.
(D) is the answer.
30 Jul 2025, 00:47
Kudos
Bookmarks
What was the average number of miles per gallon of gasoline for a car during a certain trip?
(1) The car used 20 gallons of gasoline for the 200 mile trip.
For 20 gallons, 200 miles travelled, therefore for every gallon=200/20 (i.e.10 miles are travelled)
Sufficient
(2)The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven
Implies 1/4 of 20 = 5 gallons are used for every 50 miles driven
Therefore for every gallon, travel= 50/5 = 10 miles
Sufficient
Answer: D
(1) The car used 20 gallons of gasoline for the 200 mile trip.
For 20 gallons, 200 miles travelled, therefore for every gallon=200/20 (i.e.10 miles are travelled)
Sufficient
(2)The car used 1/4 of its 20 gallon tank to for every 50 miles that was driven
Implies 1/4 of 20 = 5 gallons are used for every 50 miles driven
Therefore for every gallon, travel= 50/5 = 10 miles
Sufficient
Answer: D
