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

Input: Consider Input: Problem: two pipes a and b can separately fill a cistern in 60 minutes and 75 minutes respectively . there is a third pipe in the bottom of the cistern to empty it . if all the three pipes are simultaneously opened , then the cistern is full in 50 minutes . in how much time , the third pipe alone can empty the cistern ?

Output: 100 min


Input: Consider Input: Problem: the area of a triangle is with base 12 m and height 5 m ?

Output: 30 m 2


Input: Consider Input: Problem: what is the area of an equilateral triangle whose one side length is 50 ?


Output: 625 √