TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: what is the prime factors ’ number of 18 ?

SOLUTION: 3

PROBLEM: Problem: the ratio of the present age of viju to that of aju is 7 : 2 . 4 years from now , the ratio of the ages of viju to aju will be 5 : 2 . what was viju age 5 years ago ? ( rbi assistant 2015 )

SOLUTION: 16

PROBLEM: Problem: a man has some hens and cows . if the number of heads be 48 and the number of feet equals 140 , then the number of cows will be :

SOLUTION:
2