IMO B 16
Let the capacity of tank be x gallon
from the question
462/x - 336/x = 6
x = 21
therefore rate in the city = 336/ 21 = 16
what is the Official Answer?
Q. A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in 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?
Pls explain! Thx
say car drives x gallons/mile on highway and y gallons/mile on city.
Let the capacity of car be c gallons.
hence we have
x = 336/c and y = 462/c
We have been given that car drives at 6 fewer miles per gallon on city comparerd to highway. converting this to equation
x = y -6
336/c = 462/c -6
solving for c we get, c = 21.
Hence, put valkue of c to get value of x.
x = 336/c = 336/21 = 16.
Answer is 16.
Official Answer- B
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