In 1993, there were 104 weekend days, 9 holidays, 3 days that were both holidays and weekends. How many days were holidays or weekends?
Of the nine holidays, six were not on weekends.
Of the 104 weekend days, 104 were on the weekend.
To find the total number of days that were either holidays or weekends, we need to calculate the sum of the holidays and weekends separately, and then subtract the overlapping days.
First, let's calculate the total number of holidays:
Given that there were 9 holidays in total and 6 of them were not on weekends, we can subtract the 6 holidays not on weekends from the total holidays to find out how many holidays were also on weekends: 9 - 6 = 3 holidays on weekends.
Next, let's calculate the total number of weekend days:
It is given that there were 104 weekend days in total.
Now, we need to subtract the overlapping days (i.e., the days that were both holidays and weekends):
Given that there were 3 days that were both holidays and weekends, we need to subtract this value from the total holidays and total weekend days.
Total holidays or weekends = Total holidays + Total weekends - Overlapping days
Total holidays or weekends = 9 + 104 - 3
Total holidays or weekends = 110
Therefore, there were a total of 110 days that were either holidays or weekends.