Q: How many seconds are in 30 hours and a half minute?

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4.5hours*60minutes/hour*60seconds/minute = 1620 seconds

5400 seconds. ************************ 60 seconds = 1 minute 60 minutes = 1 hour so 1 and a half hours is 1.5x60x60= 5400 BUT I read question as 1 hour (60x60=3600seconds) plus half minute (0.5x60 = 30 seconds) so total is 3660 seconds

90 seconds

4500 seconds / 60 seconds in a minute = 75 minutes /60 minute in an hour = 1.25 hours

2 and a half hours is 90 seconds.

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30 seconds in half a minute (there are 60 seconds in a minute)

4.5hours*60minutes/hour*60seconds/minute = 1620 seconds

5400 seconds. ************************ 60 seconds = 1 minute 60 minutes = 1 hour so 1 and a half hours is 1.5x60x60= 5400 BUT I read question as 1 hour (60x60=3600seconds) plus half minute (0.5x60 = 30 seconds) so total is 3660 seconds

60 seconds an 1 minute 60 minutes in 1 hour 30 minutes in half an hour 90 minutes in one and a half hours. So 90 minutes * 60 seconds = 5400 seconds

There are no minutes in half a minute. - In one minute there are 60 seconds. - In half a minute there are 30 seconds. - In one hour there are 60 minutes. - In half an hour there are 30 minutes.

30 seconds

43200 seconds / 60 seconds in a minute / 60 minutes in an hour = 12 otherwise known as half a day

90 seconds

4500 seconds / 60 seconds in a minute = 75 minutes /60 minute in an hour = 1.25 hours

There are 19800 seconds in 5 and a half hours.

2 and a half hours is 90 seconds.

2 hours, 1 minute, 20 seconds.