[問題][問題]考古題 PS Form35 sec07-Q20

[panda]

20. A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline on the city. If the car traveled 6 fewer miles per gallon in the city than on the highway, how many miles per gallon did the car travel in the city?

Answer:(B)16

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[micki]

假設 tankful 有 T gallons

由原題可以知道 462/T = 336/T +6

可以求得 tankful 有 21 gallons

所以答案是
336/21 = 16 mile/gallon