Well from what I'm reading it could turn out to be
[tex]4 \times 60 \times 5 \div 60[/tex]
4 being the groups and 60 being the minutes they practiced. 5 being the days the coach had to stay and 60 dividing the sum because there is 60 minutes in an hour. So 4×60×5=1200 and 1200÷60=20. So the coach spent 20 hours at practice during the week.
