one
1 hour = 60 minutes
1/2 hour = 60 x 1/2 = 60/2 = 30 minutes
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An hour is equal to 60 minutes, so 150 minutes is equal to 2 and a half hours or 2 hours and 30 minutes.Two hours and thirty minutes, or two and a half hours, or 2.5 hours.
30 minutes equal half an hour.
210 minutes in 3 in half hours
It is equal to 6.1 hours or 6 hours and 6 minutes.
3.5 hours is 210 minutes.