*a) How many seconds is one hour?*

*b) How many seconds does one day have?*

*c) How many hours is a week?*

*d) How many minutes is 3h45min?*

*e) How old is a decade?*

*f) How many minutes 5h05min?*

*g) How many minutes have passed from 9:50 until 10:35?*

*h) How many seconds is 35 minutes?*

*i) How many seconds is 2h53min?*

*j) How many minutes is 12 hours?*

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