There are 480 calories per hour. An officer swims 1.5 hours for 30 days. How many calories is that?

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There are 480 calories per hour. An officer swims 1.5 hours for 30 days. How many calories is that?

1.5 hours per day times 30 days = 45 total hours.
480 calories per hour times 45 total hours = 21,600 total calories.