The task is to generate the correct answer for a given math problem.
--------
Question: Problem: the average of 5 quantities is 12 . the average of 3 of them is 4 . what is the average of remaining 2 numbers ?

Answer: 24


Question: Problem: the set s consists of 5 numbers : { 1 , 2,3 , 4,5 } . if all possible subsets including the null set are created and one subset is chosen at random , what is the probability that the subset has 3 or 4 as its largest number ?

Answer: 3 / 8


Question: Problem: if 9 / ( 1 + 4 / x ) = 1 , then x =

Answer:
1 / 2