Answer:
108 extended days
Step-by-step explanation:
Regular school hours a day = 6 hr
No. of school days to make up by extending the regular hours = 3 days
Amount of time added to the regular hours of school = 10 min
No. of extended school days to make up the 3 school days by following the above mentioned criteria be x.
Time of school hours in 3 days =


are required to make up 3 days of school having 6 hours of regular timing with 10 minutes of add-on time each day.