30 minutes is 1/6th of 3 hours, so the ratio of 30 minutes to 3 hours is 1:6
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3 hours 30 minutes = 3.5 hours
1:3
There are 60 minutes in one hour. Therefore, 3 hours 30 minutes is equal to (3 x 60) + 30 = 210 minutes.
there are 280 minutes in 3 hours and 30 minutes * * * * * Not anywhere near the correct answer which is 210 minutes.
3 hours is 180 minutes so add 30+180=210 minutes.