Four sisters take turns using the computer an equal amount of time each night. They are allowed to use the computer from 4 p. m. to 10 p. m. Each sister can use the computer for at most minutes each night. In terms of the greatest number of hours and the minutes remaining, each sister can use the computer for at most hour(s) and minute(s) each night. Four sisters take turns using the computer an equal amount of time each night.