Question

The are `8` events that can be schedules in a week, then
The total number of ways that the schedule has at least one event in each days of the week is
A. `28xx5040`
B. `7!8!`
C. `7!xx(15!)`
D. None of these

Answer 1

Correct Answer - A
`(a)` `1+1+1+1+1+2=8`
Total number of ways `=(8!)/(2!(1!)^(6)6!)xx7!=28xx5040`