The task is to generate the correct answer for a given math problem.
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Question: Problem: if 1 / ( x + 4 ) + 1 / ( x - 4 ) = 1 / ( x - 4 ) , what is the value of x ?

Answer: 4


Question: Problem: what is the total number of integers between 10 and 50 that are divisible by 2 ?

Answer: 19


Question: Problem: a work crew of 6 men takes 8 days to complete one - half of a job . if 9 men are then added to the crew and the men continue to work at the same rate , how many days will it take the enlarged crew to do the rest of the job ?

Answer:
3 1 / 5