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

[EX 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 ?
[EX A]: 9

[EX Q]: Problem: the total marks obtained by a student in mathematics and physics is 32 and his score in chemistry is 20 marks more than that in physics . find the average marks scored in mathamatics and chemistry together .
[EX A]: 26

[EX Q]: Problem: a fruit - salad mixture consists of apples , peaches , and grapes in the ratio 6 : 5 : 4 , respectively , by weight . if 60 pounds of the mixture is prepared , the mixture includes how many more pounds of apples than grapes ?
[EX A]:
8