gmatexam439 wrote:
Gasoline retail prices are directly proportional to the price of crude oil per barrel. Last week, gasoline prices averaged $3.24 per gallon. On February 21, 2008, when crude oil price per barrel touched triple digits($) for the first time in history, the average retail price of gasoline was $3.13 per gallon.
Which of the following must be true if the information above is true?
A) Crude Oil Price last week per barrel was at least $100.
B) Crude Oil prices today are higher than what they were on February 21, 2008.
C) There have been only two instances in history when crude oil prices exceeded $100 per barrel.
D) Price of gasoline per gallon was higher last week than the week before
E) Before February 21, 2008, the price of gasoline per gallon was lower than $3.00.
How do we eliminate option B?
A and B both can be inferred from the passage.
A is directly inferable from the passage. However, since the prices of oil are directly proportional to those of gasoline, the price last week of crude oil should be greater than the price on 21 Feb 2008 since the price of gasoline last week is greater than the price of gasoline on 28 Feb 2008.
Please throw some light!
Regards
Which of the following must be true if the information above is true?
A) Crude Oil Price last week per barrel was at least $100.
B) Crude Oil prices today are higher than what they were on February 21, 2008.
C) There have been only two instances in history when crude oil prices exceeded $100 per barrel.
D) Price of gasoline per gallon was higher last week than the week before
E) Before February 21, 2008, the price of gasoline per gallon was lower than $3.00.
How do we eliminate option B?
A and B both can be inferred from the passage.
A is directly inferable from the passage. However, since the prices of oil are directly proportional to those of gasoline, the price last week of crude oil should be greater than the price on 21 Feb 2008 since the price of gasoline last week is greater than the price of gasoline on 28 Feb 2008.
Please throw some light!
Regards
This is a must be true question. How can we infer anything about the price of gasoline today? Must it be true that gasoline prices today are greater than they were on Feb 21, 2008? Can the price today not be lower or equal? Since there is reasonable doubt, answer choice B cannot be the correct answer.