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Ms. Jiminez plans an automobile trip of 7,000 to 9,000 miles. The cost of gasoline will be 85 to 95 cents per gallon and

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by VJesus12 » Mon May 11, 2020 6:27 am

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Ms. Jiminez plans an automobile trip of 7,000 to 9,000 miles. The cost of gasoline will be 85 to 95
cents per gallon and her automobile will average 20 to 30 miles per gallon. What is the maximum
possible cost of the gasoline for the trip?

(A) $485.00
(B) $427.50
(C) $382.50
(D) $297.50
(E) $256.00

[spoiler]OA=B[/spoiler]

Source: GMAT Paper Tests
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Source: — Problem Solving |

VJesus12 wrote:
Mon May 11, 2020 6:27 am
Ms. Jiminez plans an automobile trip of 7,000 to 9,000 miles. The cost of gasoline will be 85 to 95
cents per gallon and her automobile will average 20 to 30 miles per gallon. What is the maximum
possible cost of the gasoline for the trip?

(A) $485.00
(B) $427.50
(C) $382.50
(D) $297.50
(E) $256.00

[spoiler]OA=B[/spoiler]
Solution:

The maximum possible cost of the gasoline for the trip occurs when Ms. Jiminez drives the longest possible distance, the cost of gasoline is the priciest possible per gallon, and fuel efficiency is the lowest possible. Therefore, the maximum possible cost of the gasoline for the trip is:

9000/20 x 0.95 = 450 x 0.95 = $427.50

Answer: B

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