3 hours is 180 minutes so add 30+180=210 minutes.
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there are 280 minutes in 3 hours and 30 minutes * * * * * Not anywhere near the correct answer which is 210 minutes.
1300 - 0930 = 3 hours 30 minutes; forgive me.
There are 60 minutes in one hour. Therefore, 3 hours 30 minutes is equal to (3 x 60) + 30 = 210 minutes.
since there are 60 seconds in one minute, and there are 210 minutes in 3 hours and 30 minutes, there are 12,600 (210 x 60) seconds in 3 hours and 30 minutes.
3.5 hours.