288 minutes = _ % of 1 day

Explanation

To solve the problem, first calculate the total number of minutes in a day by multiplying 24 hours by 60 minutes, which equals 1440 minutes. The formula for percentage is (part/whole) x 100. Here, the 'part' is 288 minutes, and the 'whole' is 1440 minutes. Substituting these values into the formula gives:Percentage = (288/1440) x 100 = 20%Therefore, 288 minutes is 20% of one day.Option A (10%) and Option B (15%) are incorrect because they result in fewer minutes than 288 when calculated as percentages of 1440. Option D (40%) is incorrect because it results in more minutes than 288, specifically 576 minutes.