A group of 10 boys booked 2 tennis courts for 1.5 hours and took turns to play. At any time, there were 8 boys playing tennis. On average, how long did each boy play? Give your answer in hours and minutes.
Question
A group of 10 boys booked 2 tennis courts for 1.5 hours and took turns to play. At any time, there were 8 boys playing tennis. On average, how long did each boy play? Give your answer in hours and minutes.
Solution
Step 1: Identify the total playing time. Since 8 boys were playing at any given time on 2 courts for 1.5 hours, the total playing time is 8 boys * 1.5 hours = 12 hours.
Step 2: Divide the total playing time by the number of boys. Since there were 10 boys, each boy played for 12 hours / 10 boys = 1.2 hours on average.
Step 3: Convert the decimal hours to minutes. Since 1 hour is 60 minutes, 0.2 hours is 0.2 * 60 = 12 minutes.
So, on average, each boy played for 1 hour and 12 minutes.
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