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

[EX Q]: Problem: two cars start at the same time from opposite ends of a highway that is 175 miles long . one car is riding at 25 mph and the second car is riding at 45 mph . how long after they begin will they meet ?
[EX A]: 2.5

[EX Q]: Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?
[EX A]: e ) 1

[EX Q]: Problem: a student needs 30 % of the marks on a test to pass the test . if the student gets 80 marks and fails the test by 100 marks , find the maximum marks set for the test .
[EX A]:
600