11,250
10,800 seconds.
Three hours.
12,600 seconds.
11,130 seconds.
To find the number of seconds in 5 and three-quarters (5.75) hours, first convert hours to seconds. There are 3600 seconds in an hour, so 5.75 hours is calculated as 5.75 × 3600 = 20,700 seconds. Therefore, there are 20,700 seconds in 5 and three-quarters hours.
8580 seconds
Three hours is 180 minutes, and 10800 seconds and 1/8 days.
12,300 seconds.
11250 (Search Google for "3 1/8 hours in seconds")
10,920 secs
3 minutes = 60 x 3 = 180 seconds one eighth of a minute = 60 ÷ 8 = 7.5 seconds 3 and one-eighth minutes = 187.5 seconds
Not sure if you want seconds in 3 and 1/2 hours or in three 1/2 hours. If it is the first case then 1 hour is 3600 seconds, hence 3 hours is 10800 seconds. Add to this the number of seconds in half hour which is 1800 to get a total of 12600 seconds If it is the second case then 1/2 hour is 1800 seconds, hence 3 half hours is 5400 seconds.