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

Input: Consider Input: Problem: the average of 10 numbers is 0 . in those 10 , at the least , how many may be greater than or equal to zero ?

Output: 1

Input: Consider Input: Problem: a reduction of 20 % in the price of oil enables a house wife to obtain 4 kgs more for rs . 600 , what is the reduced price for kg ?

Output: 30

Input: Consider Input: Problem: john can complete a given task in 18 days . jane will take only 12 days to complete the same task . john and jane set out to complete the task by beginning to work together . however , jane was indisposed 6 days before the work got over . in how many days did the work get over from the time john and jane started to work on it together ?
Output: 54 / 5