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A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
- ajith
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Gasoline Required to run 10 miles in the city = 10/25 = 0.4MTariq wrote:A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
Gasoline Required to run 50 miles in the city = 50/40 = 1.25
Average = Total Distance traveled /Total Consumption = 55/1.65 = 550/16.5 = 1100/33 = 100/3 = 33.33
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It should be 60/1.65 (since distance traveled is 60) = 36.36ajith wrote:Gasoline Required to run 10 miles in the city = 10/25 = 0.4MTariq wrote:A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
Gasoline Required to run 50 miles in the city = 50/40 = 1.25
Average = Total Distance traveled /Total Consumption = 55/1.65 = 550/16.5 = 1100/33 = 100/3 = 33.33
- thephoenix
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total distance is 60ajith wrote:Gasoline Required to run 10 miles in the city = 10/25 = 0.4MTariq wrote:A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
Gasoline Required to run 50 miles in the city = 50/40 = 1.25
Average = Total Distance traveled /Total Consumption = 55/1.65 = 550/16.5 = 1100/33 = 100/3 = 33.33
- sanju09
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https://www.beatthegmat.com/average-t9149.htmlMTariq wrote:A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
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Sanjeev K Saxena
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Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com