Provide your best answer for the following math problem. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The problem is: x and y together can completes a work in 12 days and y complete the same work in 24 days . then the number of days x required to complete the work will be ?
24 days .
8.