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1800 seconds.
There are 30 minutes in half an hour and 60 seconds in each minute.
30 * 60 = 1800
60 minutes in one hour.
30 minutes in half an hour.
There are two half hours in an hour. As an hour is 1, while a half hour is 0.5. 0.5 multiplied by 2 will equal to 1.
1,800 seconds.
Two quarters make up one half
67
8 and 3/4, or 35/4.
135
30 minutes are in half an hour.
no days just half an hour
There are 5400 seconds in an hour and a half.
Ninety minutes are in an hour and a half