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

Input: Consider Input: Problem: maxwell leaves his home and walks toward brad ' s house at the same time that brad leaves his home and runs toward maxwell ' s house . if the distance between their homes is 72 kilometers , maxwell ' s walking speed is 6 km / h , and brad ' s running speed is 12 km / h . what is the distance traveled by maxwell when they meet in the middle ?

Output: 24

Input: Consider Input: Problem: if 5 a = 3125 , then the value of 5 ( a - 3 ) is :

Output: 25

Input: Consider Input: Problem: the payment per hour for a daily - wages employee is increased by 33.33 and the working time is reduced by 33.33 % . what is the percentage change in the employee ' s income ?
Output: rs . 0.8889