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

[EX Q]: Problem: a man can row 6 kmph in still water . when the river is running at 3 kmph , it takes him 1 hour to row to a place and black . what is the total distance traveled by the man ?
[EX A]: 4.5

[EX Q]: Problem: the guests at a football banquet consumed a total of 325 pounds of food . if no individual guest consumed more than 2 pounds of food , what is the minimum number of guests that could have attended the banquet ?
[EX A]: 163

[EX Q]: Problem: a car traveled from san diego to san francisco at an average speed of 54 miles per hour . if the journey back took twice as long , what was the average speed of the trip ?
[EX A]:
36 .