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

Input: Consider Input: Problem: a van takes 5 hours to cover a distance of 495 km . what speed in kph should the van maintain to cover the same distance in 3 / 2 of the previous time ?

Output: 66


Input: Consider Input: Problem: harold works at a resort from the beginning of march to the end of september . during the month of august this past year , he made 2 times the average ( arithmetic mean ) of his monthly totals in tips for the other months . his total tips for august were what fraction of his total tips for all of the months he worked ?

Output: 1 / 4


Input: Consider Input: Problem: john makes $ 60 a week from his job . he earns a raise andnow makes $ 78 a week . what is the % increase ?


Output: 30 %