The task is to generate the correct answer for a given math problem.

[Q]: Problem: the area of a triangle is with base 12 m and height 5 m ?
[A]: 30 m 2


[Q]: Problem: a car traveled 560 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 ?
[A]: 9


[Q]: Problem: rectangular floors x and y have equal area . if floor x is 10 feet by 18 feet and floor y is 9 feet wide , what is the length of floor y , in feet ?
[A]:
20', 'c ) 18 3 / 4', 'd ) 21', 'e ) 24'