792
Step-by-step explanation:
Given : Twelve students ask to visit a college admissions counselor. The counselor can meet with one student at a time.
To Find:In how many ways can seven time slots be assigned?
Solution:
Total number of students = 12
No. of slots = 7
Counselor can meet 1 student at one time slot.
So, to find the number of ways in which seven time slots can be assigned we will use combination:
Formula :
n = 12
r = 7
Substitute the given values :
Thus there are 792 ways in which seven time slots can be assigned.
Maybe this can help you with your confusion