Let's call what we're looking for x. We know that the time between now and 12:00 is x, and the time between 9:00 and now is 4x + 15 min. Therefore, the total three-hour period from 9:00 to 12:00 is 5x + 15 min. Also, 3 hrs * 60 min/hr = 180 min.
5x + 15 min = 180 min
5x = 165 min
x = 33 min
18 minutes
196 minutes
12.5
34
42 min
18 minutes
Although it feels like the most appropriate answer should be, "Who cares?" the numerical answer is 16 minutes.
196 minutes
5760 minutes = 60 minutes in an hour times 24 hours in a day times 4 days.
The answer depends on the units used for 45.
12.5
20 minutes
33
34
42 min
In the U.S., TAFs are produced four times a day starting at approximately 30 minutes before each main synoptic hour (00Z, 06Z, 12Z, and 18Z)
34 minutes to twelve I agree with this answer and it checks out.