(60 × 4) + 45 = 285 minutes
Method:
There are 60 minutes in 1 hour: 60 minutes x 4 hours equals 240 minutes.
There are 45 minutes in 3 quarters of 1 hour.
Therefore, add 240 and 45 which equals 285 minutes.
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195 minutes.
45 minuates
18
One hour is 60 minutes. A quarter of an hour is 60 minutes/4 = 60/4 minutes = 15 minutes. Three quarters of an hour = 3*a quarter of an hour = 3*15 minutes = 45 minutes.
There are 2 quarters hours in half an hour and a quarter of an hour is 15 minutes while half an hour is 30 minutes